Clean up the remaining copyright notices

Change-Id: If099be4f71ba551df0dc3d69815ae6a9f55d1eba
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97781
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
diff --git a/pkg/analyzer/lib/analyzer.dart b/pkg/analyzer/lib/analyzer.dart
index 3516414..3806ad9 100644
--- a/pkg/analyzer/lib/analyzer.dart
+++ b/pkg/analyzer/lib/analyzer.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/context/context_root.dart b/pkg/analyzer/lib/context/context_root.dart
index 7625503..df4a4b4 100644
--- a/pkg/analyzer/lib/context/context_root.dart
+++ b/pkg/analyzer/lib/context/context_root.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/context/declared_variables.dart b/pkg/analyzer/lib/context/declared_variables.dart
index c0d7fdf..74dc187 100644
--- a/pkg/analyzer/lib/context/declared_variables.dart
+++ b/pkg/analyzer/lib/context/declared_variables.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/dart/ast/ast_factory.dart b/pkg/analyzer/lib/dart/ast/ast_factory.dart
index 27f295f..1294732 100644
--- a/pkg/analyzer/lib/dart/ast/ast_factory.dart
+++ b/pkg/analyzer/lib/dart/ast/ast_factory.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/dart/ast/precedence.dart b/pkg/analyzer/lib/dart/ast/precedence.dart
index a5480d5..aaed019 100644
--- a/pkg/analyzer/lib/dart/ast/precedence.dart
+++ b/pkg/analyzer/lib/dart/ast/precedence.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/dart/ast/resolution_map.dart b/pkg/analyzer/lib/dart/ast/resolution_map.dart
index 3762587..3a2260d 100644
--- a/pkg/analyzer/lib/dart/ast/resolution_map.dart
+++ b/pkg/analyzer/lib/dart/ast/resolution_map.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/dart/ast/standard_ast_factory.dart b/pkg/analyzer/lib/dart/ast/standard_ast_factory.dart
index 9333242..4ea2ba2 100644
--- a/pkg/analyzer/lib/dart/ast/standard_ast_factory.dart
+++ b/pkg/analyzer/lib/dart/ast/standard_ast_factory.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/dart/ast/standard_resolution_map.dart b/pkg/analyzer/lib/dart/ast/standard_resolution_map.dart
index c778063..966de1d 100644
--- a/pkg/analyzer/lib/dart/ast/standard_resolution_map.dart
+++ b/pkg/analyzer/lib/dart/ast/standard_resolution_map.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/dart/element/type.dart b/pkg/analyzer/lib/dart/element/type.dart
index a41dc92..313a9ac 100644
--- a/pkg/analyzer/lib/dart/element/type.dart
+++ b/pkg/analyzer/lib/dart/element/type.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/instrumentation/instrumentation.dart b/pkg/analyzer/lib/instrumentation/instrumentation.dart
index dc04bf5..e593f13 100644
--- a/pkg/analyzer/lib/instrumentation/instrumentation.dart
+++ b/pkg/analyzer/lib/instrumentation/instrumentation.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart b/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart
index 217ab7f..e16bc00 100644
--- a/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart
+++ b/pkg/analyzer/lib/plugin/embedded_resolver_provider.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/plugin/resolver_provider.dart b/pkg/analyzer/lib/plugin/resolver_provider.dart
index 3c22554..40567da 100644
--- a/pkg/analyzer/lib/plugin/resolver_provider.dart
+++ b/pkg/analyzer/lib/plugin/resolver_provider.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/analysis_options_provider.dart b/pkg/analyzer/lib/source/analysis_options_provider.dart
index 939f634..a35bfbc 100644
--- a/pkg/analyzer/lib/source/analysis_options_provider.dart
+++ b/pkg/analyzer/lib/source/analysis_options_provider.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/custom_resolver.dart b/pkg/analyzer/lib/source/custom_resolver.dart
index 8dfe9f9..2569313 100644
--- a/pkg/analyzer/lib/source/custom_resolver.dart
+++ b/pkg/analyzer/lib/source/custom_resolver.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/embedder.dart b/pkg/analyzer/lib/source/embedder.dart
index dfd679f..a1af355 100644
--- a/pkg/analyzer/lib/source/embedder.dart
+++ b/pkg/analyzer/lib/source/embedder.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/error_processor.dart b/pkg/analyzer/lib/source/error_processor.dart
index 3391264..f2efaba 100644
--- a/pkg/analyzer/lib/source/error_processor.dart
+++ b/pkg/analyzer/lib/source/error_processor.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/line_info.dart b/pkg/analyzer/lib/source/line_info.dart
index 5d5be56..5413ae4 100644
--- a/pkg/analyzer/lib/source/line_info.dart
+++ b/pkg/analyzer/lib/source/line_info.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/package_map_provider.dart b/pkg/analyzer/lib/source/package_map_provider.dart
index f3c2119..2c33ab5 100644
--- a/pkg/analyzer/lib/source/package_map_provider.dart
+++ b/pkg/analyzer/lib/source/package_map_provider.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/package_map_resolver.dart b/pkg/analyzer/lib/source/package_map_resolver.dart
index 6a1d230..cf65834 100644
--- a/pkg/analyzer/lib/source/package_map_resolver.dart
+++ b/pkg/analyzer/lib/source/package_map_resolver.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/path_filter.dart b/pkg/analyzer/lib/source/path_filter.dart
index ba5454e..26ecec2 100644
--- a/pkg/analyzer/lib/source/path_filter.dart
+++ b/pkg/analyzer/lib/source/path_filter.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/sdk_ext.dart b/pkg/analyzer/lib/source/sdk_ext.dart
index 7f5557b..425553e 100644
--- a/pkg/analyzer/lib/source/sdk_ext.dart
+++ b/pkg/analyzer/lib/source/sdk_ext.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/source/source_range.dart b/pkg/analyzer/lib/source/source_range.dart
index 338ad7a..b2d3069 100644
--- a/pkg/analyzer/lib/source/source_range.dart
+++ b/pkg/analyzer/lib/source/source_range.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/analysis_options/analysis_options_provider.dart b/pkg/analyzer/lib/src/analysis_options/analysis_options_provider.dart
index 550f3e3..5d3e616 100644
--- a/pkg/analyzer/lib/src/analysis_options/analysis_options_provider.dart
+++ b/pkg/analyzer/lib/src/analysis_options/analysis_options_provider.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/context/cache.dart b/pkg/analyzer/lib/src/context/cache.dart
index a1834e2..65349a0 100644
--- a/pkg/analyzer/lib/src/context/cache.dart
+++ b/pkg/analyzer/lib/src/context/cache.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/context/context.dart b/pkg/analyzer/lib/src/context/context.dart
index 1746b50..418bb41 100644
--- a/pkg/analyzer/lib/src/context/context.dart
+++ b/pkg/analyzer/lib/src/context/context.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/context/context_root.dart b/pkg/analyzer/lib/src/context/context_root.dart
index 744f298..a7da43e 100644
--- a/pkg/analyzer/lib/src/context/context_root.dart
+++ b/pkg/analyzer/lib/src/context/context_root.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/context/source.dart b/pkg/analyzer/lib/src/context/source.dart
index 70abd3dc..71abce1 100644
--- a/pkg/analyzer/lib/src/context/source.dart
+++ b/pkg/analyzer/lib/src/context/source.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/byte_store.dart b/pkg/analyzer/lib/src/dart/analysis/byte_store.dart
index 80f7b32..6e7c301 100644
--- a/pkg/analyzer/lib/src/dart/analysis/byte_store.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/byte_store.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/cache.dart b/pkg/analyzer/lib/src/dart/analysis/cache.dart
index 47a32a3..58a7253 100644
--- a/pkg/analyzer/lib/src/dart/analysis/cache.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/cache.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/crc32.dart b/pkg/analyzer/lib/src/dart/analysis/crc32.dart
index 457712e..e571bfc 100644
--- a/pkg/analyzer/lib/src/dart/analysis/crc32.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/crc32.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/defined_names.dart b/pkg/analyzer/lib/src/dart/analysis/defined_names.dart
index 44baa00..4da5300 100644
--- a/pkg/analyzer/lib/src/dart/analysis/defined_names.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/defined_names.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/dependency/library_builder.dart b/pkg/analyzer/lib/src/dart/analysis/dependency/library_builder.dart
index 4740d58..20859c2 100644
--- a/pkg/analyzer/lib/src/dart/analysis/dependency/library_builder.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/dependency/library_builder.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/dependency/node.dart b/pkg/analyzer/lib/src/dart/analysis/dependency/node.dart
index ef5022d..10baa3c 100644
--- a/pkg/analyzer/lib/src/dart/analysis/dependency/node.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/dependency/node.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/dependency/reference_collector.dart b/pkg/analyzer/lib/src/dart/analysis/dependency/reference_collector.dart
index 1121ba0..5f16104 100644
--- a/pkg/analyzer/lib/src/dart/analysis/dependency/reference_collector.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/dependency/reference_collector.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/file_state.dart b/pkg/analyzer/lib/src/dart/analysis/file_state.dart
index 3e1a68a..fa8391a 100644
--- a/pkg/analyzer/lib/src/dart/analysis/file_state.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/file_state.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/file_tracker.dart b/pkg/analyzer/lib/src/dart/analysis/file_tracker.dart
index 1e34697..363b777 100644
--- a/pkg/analyzer/lib/src/dart/analysis/file_tracker.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/file_tracker.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/fletcher16.dart b/pkg/analyzer/lib/src/dart/analysis/fletcher16.dart
index 8eb3e2e..46f3ae6 100644
--- a/pkg/analyzer/lib/src/dart/analysis/fletcher16.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/fletcher16.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/index.dart b/pkg/analyzer/lib/src/dart/analysis/index.dart
index ac79c40..61b116e 100644
--- a/pkg/analyzer/lib/src/dart/analysis/index.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/index.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/library_context.dart b/pkg/analyzer/lib/src/dart/analysis/library_context.dart
index 2b3f303..0be1dab 100644
--- a/pkg/analyzer/lib/src/dart/analysis/library_context.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/library_context.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/library_graph.dart b/pkg/analyzer/lib/src/dart/analysis/library_graph.dart
index 74cb08c..7b0bcaf 100644
--- a/pkg/analyzer/lib/src/dart/analysis/library_graph.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/library_graph.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/performance_logger.dart b/pkg/analyzer/lib/src/dart/analysis/performance_logger.dart
index 47af4cd..6c265db 100644
--- a/pkg/analyzer/lib/src/dart/analysis/performance_logger.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/performance_logger.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/referenced_names.dart b/pkg/analyzer/lib/src/dart/analysis/referenced_names.dart
index 9148fef..ab09542 100644
--- a/pkg/analyzer/lib/src/dart/analysis/referenced_names.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/referenced_names.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/analysis/top_level_declaration.dart b/pkg/analyzer/lib/src/dart/analysis/top_level_declaration.dart
index b32e636..1658aad 100644
--- a/pkg/analyzer/lib/src/dart/analysis/top_level_declaration.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/top_level_declaration.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/ast/ast_factory.dart b/pkg/analyzer/lib/src/dart/ast/ast_factory.dart
index dcc481b..2ce0985 100644
--- a/pkg/analyzer/lib/src/dart/ast/ast_factory.dart
+++ b/pkg/analyzer/lib/src/dart/ast/ast_factory.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/ast/resolution_map.dart b/pkg/analyzer/lib/src/dart/ast/resolution_map.dart
index 8d59a9e..3fa4ea4 100644
--- a/pkg/analyzer/lib/src/dart/ast/resolution_map.dart
+++ b/pkg/analyzer/lib/src/dart/ast/resolution_map.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/element/inheritance_manager2.dart b/pkg/analyzer/lib/src/dart/element/inheritance_manager2.dart
index b2fb92f..8bdc5c7 100644
--- a/pkg/analyzer/lib/src/dart/element/inheritance_manager2.dart
+++ b/pkg/analyzer/lib/src/dart/element/inheritance_manager2.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/element/wrapped.dart b/pkg/analyzer/lib/src/dart/element/wrapped.dart
index 10c3f75..984a7b1 100644
--- a/pkg/analyzer/lib/src/dart/element/wrapped.dart
+++ b/pkg/analyzer/lib/src/dart/element/wrapped.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/resolver/inheritance_manager.dart b/pkg/analyzer/lib/src/dart/resolver/inheritance_manager.dart
index 9e54c4c..0184c06 100644
--- a/pkg/analyzer/lib/src/dart/resolver/inheritance_manager.dart
+++ b/pkg/analyzer/lib/src/dart/resolver/inheritance_manager.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/resolver/method_invocation_resolver.dart b/pkg/analyzer/lib/src/dart/resolver/method_invocation_resolver.dart
index 6471484..844dfd9 100644
--- a/pkg/analyzer/lib/src/dart/resolver/method_invocation_resolver.dart
+++ b/pkg/analyzer/lib/src/dart/resolver/method_invocation_resolver.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/dart/sdk/patch.dart b/pkg/analyzer/lib/src/dart/sdk/patch.dart
index 532ae5e..d2f8f1e 100644
--- a/pkg/analyzer/lib/src/dart/sdk/patch.dart
+++ b/pkg/analyzer/lib/src/dart/sdk/patch.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/fasta/ast_builder.dart b/pkg/analyzer/lib/src/fasta/ast_builder.dart
index 746666b..358b829 100644
--- a/pkg/analyzer/lib/src/fasta/ast_builder.dart
+++ b/pkg/analyzer/lib/src/fasta/ast_builder.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/file_system/file_system.dart b/pkg/analyzer/lib/src/file_system/file_system.dart
index 183b8d1..28bd8b2 100644
--- a/pkg/analyzer/lib/src/file_system/file_system.dart
+++ b/pkg/analyzer/lib/src/file_system/file_system.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/ast.dart b/pkg/analyzer/lib/src/generated/ast.dart
index 3b0eba2..a1900ab 100644
--- a/pkg/analyzer/lib/src/generated/ast.dart
+++ b/pkg/analyzer/lib/src/generated/ast.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/element.dart b/pkg/analyzer/lib/src/generated/element.dart
index 5518d7c..da03617 100644
--- a/pkg/analyzer/lib/src/generated/element.dart
+++ b/pkg/analyzer/lib/src/generated/element.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/element_handle.dart b/pkg/analyzer/lib/src/generated/element_handle.dart
index 115c44d..4c798bd 100644
--- a/pkg/analyzer/lib/src/generated/element_handle.dart
+++ b/pkg/analyzer/lib/src/generated/element_handle.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/error.dart b/pkg/analyzer/lib/src/generated/error.dart
index 3d71368..fe431d2 100644
--- a/pkg/analyzer/lib/src/generated/error.dart
+++ b/pkg/analyzer/lib/src/generated/error.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/parser.dart b/pkg/analyzer/lib/src/generated/parser.dart
index 7cb9b22..697ef7f 100644
--- a/pkg/analyzer/lib/src/generated/parser.dart
+++ b/pkg/analyzer/lib/src/generated/parser.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/parser_fasta.dart b/pkg/analyzer/lib/src/generated/parser_fasta.dart
index b93eb52..ae03c30 100644
--- a/pkg/analyzer/lib/src/generated/parser_fasta.dart
+++ b/pkg/analyzer/lib/src/generated/parser_fasta.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/scanner.dart b/pkg/analyzer/lib/src/generated/scanner.dart
index 3b21b2f..e1d6904 100644
--- a/pkg/analyzer/lib/src/generated/scanner.dart
+++ b/pkg/analyzer/lib/src/generated/scanner.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/sdk_io.dart b/pkg/analyzer/lib/src/generated/sdk_io.dart
index cbdb6fe..9f8c00a 100644
--- a/pkg/analyzer/lib/src/generated/sdk_io.dart
+++ b/pkg/analyzer/lib/src/generated/sdk_io.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/source.dart b/pkg/analyzer/lib/src/generated/source.dart
index f2d604f..1152e24 100644
--- a/pkg/analyzer/lib/src/generated/source.dart
+++ b/pkg/analyzer/lib/src/generated/source.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/timestamped_data.dart b/pkg/analyzer/lib/src/generated/timestamped_data.dart
index 18e6323..7084cbd 100644
--- a/pkg/analyzer/lib/src/generated/timestamped_data.dart
+++ b/pkg/analyzer/lib/src/generated/timestamped_data.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/utilities_general.dart b/pkg/analyzer/lib/src/generated/utilities_general.dart
index 9722bc8..fab29a6 100644
--- a/pkg/analyzer/lib/src/generated/utilities_general.dart
+++ b/pkg/analyzer/lib/src/generated/utilities_general.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/generated/visitors.dart b/pkg/analyzer/lib/src/generated/visitors.dart
index 457d7f8..62cb61a 100644
--- a/pkg/analyzer/lib/src/generated/visitors.dart
+++ b/pkg/analyzer/lib/src/generated/visitors.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/lint/config.dart b/pkg/analyzer/lib/src/lint/config.dart
index 6f5268d..1645b5a 100644
--- a/pkg/analyzer/lib/src/lint/config.dart
+++ b/pkg/analyzer/lib/src/lint/config.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/lint/io.dart b/pkg/analyzer/lib/src/lint/io.dart
index 3e84c4d..bd3e4a0 100644
--- a/pkg/analyzer/lib/src/lint/io.dart
+++ b/pkg/analyzer/lib/src/lint/io.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/lint/linter_visitor.dart b/pkg/analyzer/lib/src/lint/linter_visitor.dart
index 54fd8cb..79fff64 100644
--- a/pkg/analyzer/lib/src/lint/linter_visitor.dart
+++ b/pkg/analyzer/lib/src/lint/linter_visitor.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/lint/options_rule_validator.dart b/pkg/analyzer/lib/src/lint/options_rule_validator.dart
index 9b28b1a..593dee4 100644
--- a/pkg/analyzer/lib/src/lint/options_rule_validator.dart
+++ b/pkg/analyzer/lib/src/lint/options_rule_validator.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/lint/project.dart b/pkg/analyzer/lib/src/lint/project.dart
index 7243747..f76a03e 100644
--- a/pkg/analyzer/lib/src/lint/project.dart
+++ b/pkg/analyzer/lib/src/lint/project.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/plugin/options.dart b/pkg/analyzer/lib/src/plugin/options.dart
index e259428..ebfa648 100644
--- a/pkg/analyzer/lib/src/plugin/options.dart
+++ b/pkg/analyzer/lib/src/plugin/options.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/plugin/resolver_provider.dart b/pkg/analyzer/lib/src/plugin/resolver_provider.dart
index abbb3a8..9ef7a7b 100644
--- a/pkg/analyzer/lib/src/plugin/resolver_provider.dart
+++ b/pkg/analyzer/lib/src/plugin/resolver_provider.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/plugin/task.dart b/pkg/analyzer/lib/src/plugin/task.dart
index fec6844..54ec75e 100644
--- a/pkg/analyzer/lib/src/plugin/task.dart
+++ b/pkg/analyzer/lib/src/plugin/task.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/source/custom_resolver.dart b/pkg/analyzer/lib/src/source/custom_resolver.dart
index 4e2c79a..0ce922e 100644
--- a/pkg/analyzer/lib/src/source/custom_resolver.dart
+++ b/pkg/analyzer/lib/src/source/custom_resolver.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/source/package_map_provider.dart b/pkg/analyzer/lib/src/source/package_map_provider.dart
index dff066c..69053ba 100644
--- a/pkg/analyzer/lib/src/source/package_map_provider.dart
+++ b/pkg/analyzer/lib/src/source/package_map_provider.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/source/package_map_resolver.dart b/pkg/analyzer/lib/src/source/package_map_resolver.dart
index b325201..7d9fbf5 100644
--- a/pkg/analyzer/lib/src/source/package_map_resolver.dart
+++ b/pkg/analyzer/lib/src/source/package_map_resolver.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/source/path_filter.dart b/pkg/analyzer/lib/src/source/path_filter.dart
index c43cae1..57aa87e 100644
--- a/pkg/analyzer/lib/src/source/path_filter.dart
+++ b/pkg/analyzer/lib/src/source/path_filter.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/source/sdk_ext.dart b/pkg/analyzer/lib/src/source/sdk_ext.dart
index 30be82a..32a1e5b 100644
--- a/pkg/analyzer/lib/src/source/sdk_ext.dart
+++ b/pkg/analyzer/lib/src/source/sdk_ext.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary/api_signature.dart b/pkg/analyzer/lib/src/summary/api_signature.dart
index 80937d6..c86d8b8 100644
--- a/pkg/analyzer/lib/src/summary/api_signature.dart
+++ b/pkg/analyzer/lib/src/summary/api_signature.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary/base.dart b/pkg/analyzer/lib/src/summary/base.dart
index 6793692..93215cf 100644
--- a/pkg/analyzer/lib/src/summary/base.dart
+++ b/pkg/analyzer/lib/src/summary/base.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary/format.dart b/pkg/analyzer/lib/src/summary/format.dart
index 340800f..b8907a4 100644
--- a/pkg/analyzer/lib/src/summary/format.dart
+++ b/pkg/analyzer/lib/src/summary/format.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
diff --git a/pkg/analyzer/lib/src/summary/format.fbs b/pkg/analyzer/lib/src/summary/format.fbs
index 2e94d0e..c6fe2b8 100644
--- a/pkg/analyzer/lib/src/summary/format.fbs
+++ b/pkg/analyzer/lib/src/summary/format.fbs
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
diff --git a/pkg/analyzer/lib/src/summary/name_filter.dart b/pkg/analyzer/lib/src/summary/name_filter.dart
index c71ff18..62633ef 100644
--- a/pkg/analyzer/lib/src/summary/name_filter.dart
+++ b/pkg/analyzer/lib/src/summary/name_filter.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary/prelink.dart b/pkg/analyzer/lib/src/summary/prelink.dart
index 1785442..b0116e6 100644
--- a/pkg/analyzer/lib/src/summary/prelink.dart
+++ b/pkg/analyzer/lib/src/summary/prelink.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/ast_binary_reader.dart b/pkg/analyzer/lib/src/summary2/ast_binary_reader.dart
index e110d1d..742ab6a 100644
--- a/pkg/analyzer/lib/src/summary2/ast_binary_reader.dart
+++ b/pkg/analyzer/lib/src/summary2/ast_binary_reader.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/ast_binary_writer.dart b/pkg/analyzer/lib/src/summary2/ast_binary_writer.dart
index b58c3e8..01ac41d 100644
--- a/pkg/analyzer/lib/src/summary2/ast_binary_writer.dart
+++ b/pkg/analyzer/lib/src/summary2/ast_binary_writer.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/ast_text_printer.dart b/pkg/analyzer/lib/src/summary2/ast_text_printer.dart
index 8e880cb..eefebe8 100644
--- a/pkg/analyzer/lib/src/summary2/ast_text_printer.dart
+++ b/pkg/analyzer/lib/src/summary2/ast_text_printer.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/link.dart b/pkg/analyzer/lib/src/summary2/link.dart
index 65fb784..4cb1d7d 100644
--- a/pkg/analyzer/lib/src/summary2/link.dart
+++ b/pkg/analyzer/lib/src/summary2/link.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/linked_bundle_context.dart b/pkg/analyzer/lib/src/summary2/linked_bundle_context.dart
index 630cb96..8ecb51f 100644
--- a/pkg/analyzer/lib/src/summary2/linked_bundle_context.dart
+++ b/pkg/analyzer/lib/src/summary2/linked_bundle_context.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/linked_unit_context.dart b/pkg/analyzer/lib/src/summary2/linked_unit_context.dart
index adcc8a0..803dff5 100644
--- a/pkg/analyzer/lib/src/summary2/linked_unit_context.dart
+++ b/pkg/analyzer/lib/src/summary2/linked_unit_context.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/linking_bundle_context.dart b/pkg/analyzer/lib/src/summary2/linking_bundle_context.dart
index 3414a7c..6a9fc44 100644
--- a/pkg/analyzer/lib/src/summary2/linking_bundle_context.dart
+++ b/pkg/analyzer/lib/src/summary2/linking_bundle_context.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/reference.dart b/pkg/analyzer/lib/src/summary2/reference.dart
index 6d34fed..234ed5d 100644
--- a/pkg/analyzer/lib/src/summary2/reference.dart
+++ b/pkg/analyzer/lib/src/summary2/reference.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/summary2/tokens_writer.dart b/pkg/analyzer/lib/src/summary2/tokens_writer.dart
index 3a9e989..59dae23 100644
--- a/pkg/analyzer/lib/src/summary2/tokens_writer.dart
+++ b/pkg/analyzer/lib/src/summary2/tokens_writer.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/api/dart.dart b/pkg/analyzer/lib/src/task/api/dart.dart
index 82f6bfc..9064e25 100644
--- a/pkg/analyzer/lib/src/task/api/dart.dart
+++ b/pkg/analyzer/lib/src/task/api/dart.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/api/general.dart b/pkg/analyzer/lib/src/task/api/general.dart
index 2f7ab11..d884116 100644
--- a/pkg/analyzer/lib/src/task/api/general.dart
+++ b/pkg/analyzer/lib/src/task/api/general.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/api/model.dart b/pkg/analyzer/lib/src/task/api/model.dart
index fe0edef..2d13057 100644
--- a/pkg/analyzer/lib/src/task/api/model.dart
+++ b/pkg/analyzer/lib/src/task/api/model.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/api/yaml.dart b/pkg/analyzer/lib/src/task/api/yaml.dart
index 8bfe390..aacc75d 100644
--- a/pkg/analyzer/lib/src/task/api/yaml.dart
+++ b/pkg/analyzer/lib/src/task/api/yaml.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/driver.dart b/pkg/analyzer/lib/src/task/driver.dart
index c7f12e2..843041d 100644
--- a/pkg/analyzer/lib/src/task/driver.dart
+++ b/pkg/analyzer/lib/src/task/driver.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/general.dart b/pkg/analyzer/lib/src/task/general.dart
index 446f14a..5fcb776 100644
--- a/pkg/analyzer/lib/src/task/general.dart
+++ b/pkg/analyzer/lib/src/task/general.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/inputs.dart b/pkg/analyzer/lib/src/task/inputs.dart
index d490238..30fd2446e 100644
--- a/pkg/analyzer/lib/src/task/inputs.dart
+++ b/pkg/analyzer/lib/src/task/inputs.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/manager.dart b/pkg/analyzer/lib/src/task/manager.dart
index 40778cb..009afaf 100644
--- a/pkg/analyzer/lib/src/task/manager.dart
+++ b/pkg/analyzer/lib/src/task/manager.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/model.dart b/pkg/analyzer/lib/src/task/model.dart
index a84a960..ec62312 100644
--- a/pkg/analyzer/lib/src/task/model.dart
+++ b/pkg/analyzer/lib/src/task/model.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/strong_mode.dart b/pkg/analyzer/lib/src/task/strong_mode.dart
index fdbc6d4..0ae39f9 100644
--- a/pkg/analyzer/lib/src/task/strong_mode.dart
+++ b/pkg/analyzer/lib/src/task/strong_mode.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/task/yaml.dart b/pkg/analyzer/lib/src/task/yaml.dart
index 431cf30..56ea51c 100644
--- a/pkg/analyzer/lib/src/task/yaml.dart
+++ b/pkg/analyzer/lib/src/task/yaml.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/test_utilities/find_element.dart b/pkg/analyzer/lib/src/test_utilities/find_element.dart
index 86b3e1f..f8ff22c 100644
--- a/pkg/analyzer/lib/src/test_utilities/find_element.dart
+++ b/pkg/analyzer/lib/src/test_utilities/find_element.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/test_utilities/function_ast_visitor.dart b/pkg/analyzer/lib/src/test_utilities/function_ast_visitor.dart
index f3c951b..df7a2f1 100644
--- a/pkg/analyzer/lib/src/test_utilities/function_ast_visitor.dart
+++ b/pkg/analyzer/lib/src/test_utilities/function_ast_visitor.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/test_utilities/mock_sdk.dart b/pkg/analyzer/lib/src/test_utilities/mock_sdk.dart
index 47659a8..d4c070c 100644
--- a/pkg/analyzer/lib/src/test_utilities/mock_sdk.dart
+++ b/pkg/analyzer/lib/src/test_utilities/mock_sdk.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/test_utilities/resource_provider_mixin.dart b/pkg/analyzer/lib/src/test_utilities/resource_provider_mixin.dart
index 8f20457..6c0072b 100644
--- a/pkg/analyzer/lib/src/test_utilities/resource_provider_mixin.dart
+++ b/pkg/analyzer/lib/src/test_utilities/resource_provider_mixin.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/util/sdk.dart b/pkg/analyzer/lib/src/util/sdk.dart
index b89f3d7..abffd58 100644
--- a/pkg/analyzer/lib/src/util/sdk.dart
+++ b/pkg/analyzer/lib/src/util/sdk.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/util/uri.dart b/pkg/analyzer/lib/src/util/uri.dart
index 91bbdb2..963dafc 100644
--- a/pkg/analyzer/lib/src/util/uri.dart
+++ b/pkg/analyzer/lib/src/util/uri.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/util/yaml.dart b/pkg/analyzer/lib/src/util/yaml.dart
index 1950bdd..4485072 100644
--- a/pkg/analyzer/lib/src/util/yaml.dart
+++ b/pkg/analyzer/lib/src/util/yaml.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/workspace/bazel.dart b/pkg/analyzer/lib/src/workspace/bazel.dart
index 5e90c71..9151e23 100644
--- a/pkg/analyzer/lib/src/workspace/bazel.dart
+++ b/pkg/analyzer/lib/src/workspace/bazel.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/workspace/gn.dart b/pkg/analyzer/lib/src/workspace/gn.dart
index 191c421..6490363 100644
--- a/pkg/analyzer/lib/src/workspace/gn.dart
+++ b/pkg/analyzer/lib/src/workspace/gn.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/src/workspace/package_build.dart b/pkg/analyzer/lib/src/workspace/package_build.dart
index c5c74673..4e6bee0 100644
--- a/pkg/analyzer/lib/src/workspace/package_build.dart
+++ b/pkg/analyzer/lib/src/workspace/package_build.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/lib/task/model.dart b/pkg/analyzer/lib/task/model.dart
index 1b33bf4..6768ca2 100644
--- a/pkg/analyzer/lib/task/model.dart
+++ b/pkg/analyzer/lib/task/model.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/dart/analysis/declared_variables_test.dart b/pkg/analyzer/test/dart/analysis/declared_variables_test.dart
index b9465f3..2460423 100644
--- a/pkg/analyzer/test/dart/analysis/declared_variables_test.dart
+++ b/pkg/analyzer/test/dart/analysis/declared_variables_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/dart/analysis/test_all.dart b/pkg/analyzer/test/dart/analysis/test_all.dart
index b17fcd8..fe1f2ee 100644
--- a/pkg/analyzer/test/dart/analysis/test_all.dart
+++ b/pkg/analyzer/test/dart/analysis/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/dart/test_all.dart b/pkg/analyzer/test/dart/test_all.dart
index 3575edb..fb48b99 100644
--- a/pkg/analyzer/test/dart/test_all.dart
+++ b/pkg/analyzer/test/dart/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/error/error_test.dart b/pkg/analyzer/test/error/error_test.dart
index a33f0f2..1a8f9fe 100644
--- a/pkg/analyzer/test/error/error_test.dart
+++ b/pkg/analyzer/test/error/error_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/error/test_all.dart b/pkg/analyzer/test/error/test_all.dart
index aeadc12..19eca56 100644
--- a/pkg/analyzer/test/error/test_all.dart
+++ b/pkg/analyzer/test/error/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/analysis_context_factory.dart b/pkg/analyzer/test/generated/analysis_context_factory.dart
index 4ee79f0..e2aef27 100644
--- a/pkg/analyzer/test/generated/analysis_context_factory.dart
+++ b/pkg/analyzer/test/generated/analysis_context_factory.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/constant_test.dart b/pkg/analyzer/test/generated/constant_test.dart
index d4e7df3..7d8db75 100644
--- a/pkg/analyzer/test/generated/constant_test.dart
+++ b/pkg/analyzer/test/generated/constant_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/engine_test.dart b/pkg/analyzer/test/generated/engine_test.dart
index 758f4b6..dfd1476 100644
--- a/pkg/analyzer/test/generated/engine_test.dart
+++ b/pkg/analyzer/test/generated/engine_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/parser_fasta_listener.dart b/pkg/analyzer/test/generated/parser_fasta_listener.dart
index 7217806..45b0b61 100644
--- a/pkg/analyzer/test/generated/parser_fasta_listener.dart
+++ b/pkg/analyzer/test/generated/parser_fasta_listener.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/parser_test.dart b/pkg/analyzer/test/generated/parser_test.dart
index 4c51e12..fae0a92 100644
--- a/pkg/analyzer/test/generated/parser_test.dart
+++ b/pkg/analyzer/test/generated/parser_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/scanner_test.dart b/pkg/analyzer/test/generated/scanner_test.dart
index 62165ac..79a88bf 100644
--- a/pkg/analyzer/test/generated/scanner_test.dart
+++ b/pkg/analyzer/test/generated/scanner_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/source_factory_test.dart b/pkg/analyzer/test/generated/source_factory_test.dart
index 767de68..ad4c7bd 100644
--- a/pkg/analyzer/test/generated/source_factory_test.dart
+++ b/pkg/analyzer/test/generated/source_factory_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/generated/utilities_test.dart b/pkg/analyzer/test/generated/utilities_test.dart
index adb5de9..8463f41 100644
--- a/pkg/analyzer/test/generated/utilities_test.dart
+++ b/pkg/analyzer/test/generated/utilities_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/source/analysis_options_provider_test.dart b/pkg/analyzer/test/source/analysis_options_provider_test.dart
index d271900..33e23e4 100644
--- a/pkg/analyzer/test/source/analysis_options_provider_test.dart
+++ b/pkg/analyzer/test/source/analysis_options_provider_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/source/embedder_test.dart b/pkg/analyzer/test/source/embedder_test.dart
index 2068361..ad2cd7b 100644
--- a/pkg/analyzer/test/source/embedder_test.dart
+++ b/pkg/analyzer/test/source/embedder_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/source/error_processor_test.dart b/pkg/analyzer/test/source/error_processor_test.dart
index 966a8ed..71d8d5e 100644
--- a/pkg/analyzer/test/source/error_processor_test.dart
+++ b/pkg/analyzer/test/source/error_processor_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/source/package_map_resolver_test.dart b/pkg/analyzer/test/source/package_map_resolver_test.dart
index ec716dc..498e8f7 100644
--- a/pkg/analyzer/test/source/package_map_resolver_test.dart
+++ b/pkg/analyzer/test/source/package_map_resolver_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/source/path_filter_test.dart b/pkg/analyzer/test/source/path_filter_test.dart
index 0dcba2e..279deb4 100644
--- a/pkg/analyzer/test/source/path_filter_test.dart
+++ b/pkg/analyzer/test/source/path_filter_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/source/sdk_ext_test.dart b/pkg/analyzer/test/source/sdk_ext_test.dart
index 4f542d1..0172bc6 100644
--- a/pkg/analyzer/test/source/sdk_ext_test.dart
+++ b/pkg/analyzer/test/source/sdk_ext_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/context/cache_test.dart b/pkg/analyzer/test/src/context/cache_test.dart
index 2b42c7d9..a689ff0 100644
--- a/pkg/analyzer/test/src/context/cache_test.dart
+++ b/pkg/analyzer/test/src/context/cache_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/context/source_test.dart b/pkg/analyzer/test/src/context/source_test.dart
index 530d908..74b8c43 100644
--- a/pkg/analyzer/test/src/context/source_test.dart
+++ b/pkg/analyzer/test/src/context/source_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/base.dart b/pkg/analyzer/test/src/dart/analysis/base.dart
index 98af793..46ac748 100644
--- a/pkg/analyzer/test/src/dart/analysis/base.dart
+++ b/pkg/analyzer/test/src/dart/analysis/base.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/byte_store_test.dart b/pkg/analyzer/test/src/dart/analysis/byte_store_test.dart
index ad06c6a..1a2be58 100644
--- a/pkg/analyzer/test/src/dart/analysis/byte_store_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/byte_store_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/cache_test.dart b/pkg/analyzer/test/src/dart/analysis/cache_test.dart
index 20f190d..60524d6 100644
--- a/pkg/analyzer/test/src/dart/analysis/cache_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/cache_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/context_root_test.dart b/pkg/analyzer/test/src/dart/analysis/context_root_test.dart
index 6edc6d2..3e8299f 100644
--- a/pkg/analyzer/test/src/dart/analysis/context_root_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/context_root_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/crc32_test.dart b/pkg/analyzer/test/src/dart/analysis/crc32_test.dart
index 2480507..cb7e682 100644
--- a/pkg/analyzer/test/src/dart/analysis/crc32_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/crc32_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/defined_names_test.dart b/pkg/analyzer/test/src/dart/analysis/defined_names_test.dart
index 336414a..63f3ad4 100644
--- a/pkg/analyzer/test/src/dart/analysis/defined_names_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/defined_names_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/dependency/test_all.dart b/pkg/analyzer/test/src/dart/analysis/dependency/test_all.dart
index 0abdb5c..9ddb5bd 100644
--- a/pkg/analyzer/test/src/dart/analysis/dependency/test_all.dart
+++ b/pkg/analyzer/test/src/dart/analysis/dependency/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/file_byte_store_test.dart b/pkg/analyzer/test/src/dart/analysis/file_byte_store_test.dart
index 5975150..120aab9 100644
--- a/pkg/analyzer/test/src/dart/analysis/file_byte_store_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/file_byte_store_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/file_state_test.dart b/pkg/analyzer/test/src/dart/analysis/file_state_test.dart
index f01268d..f69ba70 100644
--- a/pkg/analyzer/test/src/dart/analysis/file_state_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/file_state_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/fletcher16_test.dart b/pkg/analyzer/test/src/dart/analysis/fletcher16_test.dart
index e44e3a7..fb801e5 100644
--- a/pkg/analyzer/test/src/dart/analysis/fletcher16_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/fletcher16_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/mutex_test.dart b/pkg/analyzer/test/src/dart/analysis/mutex_test.dart
index 34a8d86..a70119a 100644
--- a/pkg/analyzer/test/src/dart/analysis/mutex_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/mutex_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart b/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart
index 097d3ed..d223d82 100644
--- a/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/referenced_names_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/results_test.dart b/pkg/analyzer/test/src/dart/analysis/results_test.dart
index bb60ff5..06a0b47 100644
--- a/pkg/analyzer/test/src/dart/analysis/results_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/results_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/session_helper_test.dart b/pkg/analyzer/test/src/dart/analysis/session_helper_test.dart
index a5b6353..7316c24 100644
--- a/pkg/analyzer/test/src/dart/analysis/session_helper_test.dart
+++ b/pkg/analyzer/test/src/dart/analysis/session_helper_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/analysis/test_all.dart b/pkg/analyzer/test/src/dart/analysis/test_all.dart
index d1428d6..481b428 100644
--- a/pkg/analyzer/test/src/dart/analysis/test_all.dart
+++ b/pkg/analyzer/test/src/dart/analysis/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/ast/test_all.dart b/pkg/analyzer/test/src/dart/ast/test_all.dart
index 25eb567..2f66d8c 100644
--- a/pkg/analyzer/test/src/dart/ast/test_all.dart
+++ b/pkg/analyzer/test/src/dart/ast/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/element/inheritance_manager2_test.dart b/pkg/analyzer/test/src/dart/element/inheritance_manager2_test.dart
index 2755ffb..07b9de2 100644
--- a/pkg/analyzer/test/src/dart/element/inheritance_manager2_test.dart
+++ b/pkg/analyzer/test/src/dart/element/inheritance_manager2_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/element/test_all.dart b/pkg/analyzer/test/src/dart/element/test_all.dart
index f75596d..134b672 100644
--- a/pkg/analyzer/test/src/dart/element/test_all.dart
+++ b/pkg/analyzer/test/src/dart/element/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/assignment_test.dart b/pkg/analyzer/test/src/dart/resolution/assignment_test.dart
index 4d0fd0f..d5e4d8a 100644
--- a/pkg/analyzer/test/src/dart/resolution/assignment_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/assignment_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/class_alias_test.dart b/pkg/analyzer/test/src/dart/resolution/class_alias_test.dart
index e97423c..37aa571 100644
--- a/pkg/analyzer/test/src/dart/resolution/class_alias_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/class_alias_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/class_test.dart b/pkg/analyzer/test/src/dart/resolution/class_test.dart
index f8ce37a..a49a209 100644
--- a/pkg/analyzer/test/src/dart/resolution/class_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/class_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/comment_test.dart b/pkg/analyzer/test/src/dart/resolution/comment_test.dart
index 8fba266..dc7def9 100644
--- a/pkg/analyzer/test/src/dart/resolution/comment_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/comment_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/constant_test.dart b/pkg/analyzer/test/src/dart/resolution/constant_test.dart
index 31867db..39a9d4a 100644
--- a/pkg/analyzer/test/src/dart/resolution/constant_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/constant_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/enum_test.dart b/pkg/analyzer/test/src/dart/resolution/enum_test.dart
index 90a59b1..c21ca09 100644
--- a/pkg/analyzer/test/src/dart/resolution/enum_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/enum_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/for_element_test.dart b/pkg/analyzer/test/src/dart/resolution/for_element_test.dart
index 3069acf..967b539 100644
--- a/pkg/analyzer/test/src/dart/resolution/for_element_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/for_element_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/for_in_test.dart b/pkg/analyzer/test/src/dart/resolution/for_in_test.dart
index e06e3a7..4c8f5b8 100644
--- a/pkg/analyzer/test/src/dart/resolution/for_in_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/for_in_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/generic_type_alias_test.dart b/pkg/analyzer/test/src/dart/resolution/generic_type_alias_test.dart
index 891c0f7..a3cadc7 100644
--- a/pkg/analyzer/test/src/dart/resolution/generic_type_alias_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/generic_type_alias_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/import_prefix_test.dart b/pkg/analyzer/test/src/dart/resolution/import_prefix_test.dart
index 647c4c8..cb5ac0b 100644
--- a/pkg/analyzer/test/src/dart/resolution/import_prefix_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/import_prefix_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/instance_creation_test.dart b/pkg/analyzer/test/src/dart/resolution/instance_creation_test.dart
index a4af48e..8bfb1f0 100644
--- a/pkg/analyzer/test/src/dart/resolution/instance_creation_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/instance_creation_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/instance_member_inference_class_test.dart b/pkg/analyzer/test/src/dart/resolution/instance_member_inference_class_test.dart
index 4c0fd6a..1faee15 100644
--- a/pkg/analyzer/test/src/dart/resolution/instance_member_inference_class_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/instance_member_inference_class_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/instance_member_inference_mixin_test.dart b/pkg/analyzer/test/src/dart/resolution/instance_member_inference_mixin_test.dart
index 0ab92025..7c2104f 100644
--- a/pkg/analyzer/test/src/dart/resolution/instance_member_inference_mixin_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/instance_member_inference_mixin_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/method_invocation_test.dart b/pkg/analyzer/test/src/dart/resolution/method_invocation_test.dart
index 2af994d..f5a709a 100644
--- a/pkg/analyzer/test/src/dart/resolution/method_invocation_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/method_invocation_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/mixin_test.dart b/pkg/analyzer/test/src/dart/resolution/mixin_test.dart
index 496f774..b84f31a 100644
--- a/pkg/analyzer/test/src/dart/resolution/mixin_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/mixin_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/non_nullable_test.dart b/pkg/analyzer/test/src/dart/resolution/non_nullable_test.dart
index e1704c6..1b47f1e 100644
--- a/pkg/analyzer/test/src/dart/resolution/non_nullable_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/non_nullable_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/optional_const_test.dart b/pkg/analyzer/test/src/dart/resolution/optional_const_test.dart
index df32638..895ec43 100644
--- a/pkg/analyzer/test/src/dart/resolution/optional_const_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/optional_const_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/property_access_test.dart b/pkg/analyzer/test/src/dart/resolution/property_access_test.dart
index c127e27..0723755 100644
--- a/pkg/analyzer/test/src/dart/resolution/property_access_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/property_access_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/resolution.dart b/pkg/analyzer/test/src/dart/resolution/resolution.dart
index be8eb31..08971b0 100644
--- a/pkg/analyzer/test/src/dart/resolution/resolution.dart
+++ b/pkg/analyzer/test/src/dart/resolution/resolution.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolution/top_type_inference_test.dart b/pkg/analyzer/test/src/dart/resolution/top_type_inference_test.dart
index cdb193e..9d08d0e 100644
--- a/pkg/analyzer/test/src/dart/resolution/top_type_inference_test.dart
+++ b/pkg/analyzer/test/src/dart/resolution/top_type_inference_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/resolver/test_all.dart b/pkg/analyzer/test/src/dart/resolver/test_all.dart
index aff3b4f..e6430bd 100644
--- a/pkg/analyzer/test/src/dart/resolver/test_all.dart
+++ b/pkg/analyzer/test/src/dart/resolver/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/dart/sdk/patch_test.dart b/pkg/analyzer/test/src/dart/sdk/patch_test.dart
index dd57aa6..0357f98 100644
--- a/pkg/analyzer/test/src/dart/sdk/patch_test.dart
+++ b/pkg/analyzer/test/src/dart/sdk/patch_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_named_test.dart b/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_named_test.dart
index 035a8e5..7b57b1e 100644
--- a/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_named_test.dart
+++ b/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_named_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_positional_test.dart b/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_positional_test.dart
index fc83949..b3f03a6 100644
--- a/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_positional_test.dart
+++ b/pkg/analyzer/test/src/diagnostics/invalid_override_different_default_values_positional_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/lint/config_test.dart b/pkg/analyzer/test/src/lint/config_test.dart
index 2b44f9b..bd39e89 100644
--- a/pkg/analyzer/test/src/lint/config_test.dart
+++ b/pkg/analyzer/test/src/lint/config_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/lint/io_test.dart b/pkg/analyzer/test/src/lint/io_test.dart
index 3a377f0..e92b940 100644
--- a/pkg/analyzer/test/src/lint/io_test.dart
+++ b/pkg/analyzer/test/src/lint/io_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/lint/project_test.dart b/pkg/analyzer/test/src/lint/project_test.dart
index 5dcaa89..1c67dfb 100644
--- a/pkg/analyzer/test/src/lint/project_test.dart
+++ b/pkg/analyzer/test/src/lint/project_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/lint/pub_test.dart b/pkg/analyzer/test/src/lint/pub_test.dart
index aa3412e..ea778f3 100644
--- a/pkg/analyzer/test/src/lint/pub_test.dart
+++ b/pkg/analyzer/test/src/lint/pub_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/options/options_rule_validator_test.dart b/pkg/analyzer/test/src/options/options_rule_validator_test.dart
index 5150828..c4aa442 100644
--- a/pkg/analyzer/test/src/options/options_rule_validator_test.dart
+++ b/pkg/analyzer/test/src/options/options_rule_validator_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/options/test_all.dart b/pkg/analyzer/test/src/options/test_all.dart
index e38e167..4d8d6a6 100644
--- a/pkg/analyzer/test/src/options/test_all.dart
+++ b/pkg/analyzer/test/src/options/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/pubspec/test_all.dart b/pkg/analyzer/test/src/pubspec/test_all.dart
index a7e7ebe..c4aa6ea 100644
--- a/pkg/analyzer/test/src/pubspec/test_all.dart
+++ b/pkg/analyzer/test/src/pubspec/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/services/available_declarations_test.dart b/pkg/analyzer/test/src/services/available_declarations_test.dart
index e82719f..ce40abe 100644
--- a/pkg/analyzer/test/src/services/available_declarations_test.dart
+++ b/pkg/analyzer/test/src/services/available_declarations_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/api_signature_test.dart b/pkg/analyzer/test/src/summary/api_signature_test.dart
index 348d091..b302076 100644
--- a/pkg/analyzer/test/src/summary/api_signature_test.dart
+++ b/pkg/analyzer/test/src/summary/api_signature_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/dependency_walker_test.dart b/pkg/analyzer/test/src/summary/dependency_walker_test.dart
index 15a7306..1e4e9dc 100644
--- a/pkg/analyzer/test/src/summary/dependency_walker_test.dart
+++ b/pkg/analyzer/test/src/summary/dependency_walker_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/element_text.dart b/pkg/analyzer/test/src/summary/element_text.dart
index 22abda0..ca7d14f 100644
--- a/pkg/analyzer/test/src/summary/element_text.dart
+++ b/pkg/analyzer/test/src/summary/element_text.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/flat_buffers_test.dart b/pkg/analyzer/test/src/summary/flat_buffers_test.dart
index d5cb5cc..405b5ac 100644
--- a/pkg/analyzer/test/src/summary/flat_buffers_test.dart
+++ b/pkg/analyzer/test/src/summary/flat_buffers_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/linker_test.dart b/pkg/analyzer/test/src/summary/linker_test.dart
index e406c24..ab21dcd 100644
--- a/pkg/analyzer/test/src/summary/linker_test.dart
+++ b/pkg/analyzer/test/src/summary/linker_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/name_filter_test.dart b/pkg/analyzer/test/src/summary/name_filter_test.dart
index ef66cc5..73a80fe 100644
--- a/pkg/analyzer/test/src/summary/name_filter_test.dart
+++ b/pkg/analyzer/test/src/summary/name_filter_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/package_bundle_reader_test.dart b/pkg/analyzer/test/src/summary/package_bundle_reader_test.dart
index e5bc13c..9daafee 100644
--- a/pkg/analyzer/test/src/summary/package_bundle_reader_test.dart
+++ b/pkg/analyzer/test/src/summary/package_bundle_reader_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/prelinker_test.dart b/pkg/analyzer/test/src/summary/prelinker_test.dart
index 6ac254a..59d8a62 100644
--- a/pkg/analyzer/test/src/summary/prelinker_test.dart
+++ b/pkg/analyzer/test/src/summary/prelinker_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
index a931ac3..de84750 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_ast_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart b/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart
index b83b616..7a9c6bf 100644
--- a/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart
+++ b/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/summary/test_strategies.dart b/pkg/analyzer/test/src/summary/test_strategies.dart
index 566c62c..3c94e29 100644
--- a/pkg/analyzer/test/src/summary/test_strategies.dart
+++ b/pkg/analyzer/test/src/summary/test_strategies.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/task/strong/dart2_inference_test.dart b/pkg/analyzer/test/src/task/strong/dart2_inference_test.dart
index 0036bd3..e4885e3 100644
--- a/pkg/analyzer/test/src/task/strong/dart2_inference_test.dart
+++ b/pkg/analyzer/test/src/task/strong/dart2_inference_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/task/strong/strong_test_helper.dart b/pkg/analyzer/test/src/task/strong/strong_test_helper.dart
index fadd403..9589973 100644
--- a/pkg/analyzer/test/src/task/strong/strong_test_helper.dart
+++ b/pkg/analyzer/test/src/task/strong/strong_test_helper.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/task/strong/test_all.dart b/pkg/analyzer/test/src/task/strong/test_all.dart
index cf07437..69e4bd3 100644
--- a/pkg/analyzer/test/src/task/strong/test_all.dart
+++ b/pkg/analyzer/test/src/task/strong/test_all.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/test/src/util/yaml_test.dart b/pkg/analyzer/test/src/util/yaml_test.dart
index d184a38..683708e 100644
--- a/pkg/analyzer/test/src/util/yaml_test.dart
+++ b/pkg/analyzer/test/src/util/yaml_test.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/tool/analysis_driver/inspect_exception.dart b/pkg/analyzer/tool/analysis_driver/inspect_exception.dart
index 9813944..b15b904 100644
--- a/pkg/analyzer/tool/analysis_driver/inspect_exception.dart
+++ b/pkg/analyzer/tool/analysis_driver/inspect_exception.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/tool/summary/dump_inferred_types.dart b/pkg/analyzer/tool/summary/dump_inferred_types.dart
index ffc71af..81d2a34 100644
--- a/pkg/analyzer/tool/summary/dump_inferred_types.dart
+++ b/pkg/analyzer/tool/summary/dump_inferred_types.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/tool/summary/generate.dart b/pkg/analyzer/tool/summary/generate.dart
index f3426c1..7e706db 100644
--- a/pkg/analyzer/tool/summary/generate.dart
+++ b/pkg/analyzer/tool/summary/generate.dart
@@ -478,7 +478,7 @@
   }
 
   void outputHeader() {
-    out('// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file');
+    out('// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file');
     out('// for details. All rights reserved. Use of this source code is governed by a');
     out('// BSD-style license that can be found in the LICENSE file.');
     out('//');
diff --git a/pkg/analyzer/tool/summary/inspect.dart b/pkg/analyzer/tool/summary/inspect.dart
index e1daf10..b968118 100644
--- a/pkg/analyzer/tool/summary/inspect.dart
+++ b/pkg/analyzer/tool/summary/inspect.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
diff --git a/pkg/analyzer/tool/summary/mini_ast.dart b/pkg/analyzer/tool/summary/mini_ast.dart
index a4e718e..cf52e31 100644
--- a/pkg/analyzer/tool/summary/mini_ast.dart
+++ b/pkg/analyzer/tool/summary/mini_ast.dart
@@ -1,4 +1,4 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.