When converting -m/--message to -t, make sure to handle the case --message=foo

git_cl.py

Index: git_cl.py
===================================================================
--- git_cl.py	(revision 136864)
+++ git_cl.py	(working copy)
@@ -967,7 +967,7 @@
 
   if cl.GetIssue():
     if options.message:
-      upload_args.extend(['--message', options.message])
+      upload_args.extend(['--title', options.message])
     upload_args.extend(['--issue', cl.GetIssue()])
     print ("This branch is associated with issue %s. "
            "Adding patch to that issue." % cl.GetIssue())
@@ -1064,6 +1064,13 @@
                       help='target branch to upload')
   (options, args) = parser.parse_args(args)
 
+  # Print warning if the user used the -m/--message argument.  This will soon
+  # change to -t/--title.
+  print >> sys.stderr, (
+      '\nWARNING: Use -t or --title to set the title of the patchset.\n' +
+      'In the near future, -m or --message will send a message instead.\n' +
+      'See http://groups.google.com/a/chromium.org/group/chromium-dev/browse_thread/thread/d8422e01be3ddc51# for details.\n')
+    
   # Make sure index is up-to-date before running diff-index.
   RunGit(['update-index', '--refresh', '-q'], error_ok=True)
   if RunGit(['diff-index', 'HEAD']):