Update URL to point to correct documentation (#1231)

* Update URL to point to correct documentation
diff --git a/pkgs/test/test/runner/runner_test.dart b/pkgs/test/test/runner/runner_test.dart
index 43eea8b..f1fb792 100644
--- a/pkgs/test/test/runner/runner_test.dart
+++ b/pkgs/test/test/runner/runner_test.dart
@@ -100,7 +100,7 @@
 
           [compact]                   A single line, updated continuously.
           [expanded] (default)        A separate line for each update.
-          [json]                      A machine-readable format (see https://goo.gl/gBsV1a).
+          [json]                      A machine-readable format (see https://bit.ly/2Z7J0OH).
 
     --file-reporter                   The reporter used to write test results to a file.
                                       Should be in the form <reporter>:<filepath>, e.g. "json:reports/tests.json"
diff --git a/pkgs/test_core/lib/src/runner/configuration/reporters.dart b/pkgs/test_core/lib/src/runner/configuration/reporters.dart
index dc557cf..6793b23 100644
--- a/pkgs/test_core/lib/src/runner/configuration/reporters.dart
+++ b/pkgs/test_core/lib/src/runner/configuration/reporters.dart
@@ -39,7 +39,7 @@
   'compact': ReporterDetails('A single line, updated continuously.',
       (_, engine, sink) => CompactReporter.watch(engine, sink)),
   'json': ReporterDetails(
-      'A machine-readable format (see https://goo.gl/gBsV1a).',
+      'A machine-readable format (see https://bit.ly/2Z7J0OH).',
       (_, engine, sink) => JsonReporter.watch(engine, sink)),
 };