Add a space before period in review URL

This is needed to ensure that it resolves to a correct URL on Gitiles.

R=maruel@chromium.org, smut@google.com

Review URL: https://codereview.chromium.org/1225713002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@295932 0039d316-1c4b-4281-b951-d872f2087c98

git_cl.py

@@ -2545,7 +2545,9 @@ def SendUpstream(parser, args, cmd):
   commit_desc = ChangeDescription(change_desc.description)
   if cl.GetIssue():
     # Xcode won't linkify this URL unless there is a non-whitespace character
-    # after it. Add a period on a new line to circumvent this.
+    # after it. Add a period on a new line to circumvent this. Also add a space
+    # before the period to make sure that Gitiles continues to correctly resolve
+    # the URL.
     commit_desc.append_footer('Review URL: %s .' % cl.GetIssueURL())
   if options.contributor:
     commit_desc.append_footer('Patch from %s.' % options.contributor)