Update usage output for latest args (#2372)

The `help` command is now hidden since it is redundant against the last
line which also explains how to use help.

Blank lines between options have been removed.
diff --git a/test/pub_test.dart b/test/pub_test.dart
index 7ee7a08..21227d2 100644
--- a/test/pub_test.dart
+++ b/test/pub_test.dart
@@ -34,7 +34,6 @@
           downgrade   Downgrade the current package's dependencies to oldest versions.
           get         Get the current package's dependencies.
           global      Work with global packages.
-          help        Display help information for pub.
           logout      Log out of pub.dartlang.org.
           outdated    Analyze your dependencies to find which ones can be upgraded.
           publish     Publish the current package to pub.dartlang.org.
diff --git a/test/pub_uploader_test.dart b/test/pub_uploader_test.dart
index 83b53c0..34390ef 100644
--- a/test/pub_uploader_test.dart
+++ b/test/pub_uploader_test.dart
@@ -22,7 +22,6 @@
 -h, --help       Print this usage information.
     --server     The package server on which the package is hosted.
                  (defaults to "https://pub.dartlang.org")
-
     --package    The package whose uploaders will be modified.
                  (defaults to the current package)