Add the patchset id to the manual commit messages

tests/gcl_unittest.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Unit tests for gcl.py."""
 
 # pylint: disable=E1103,E1101,E1120
 
 import os
@@ skipping 595 matching lines @@
 
     retval = gcl.CMDcommit(['naame'])
     self.assertEquals(retval, 0)
     # This is because append_footer is mocked.
     self.assertEquals(change_info.description, 'deescription')
     # pylint: disable=W0212
     self.assertTrue(change_info._deleted)
     self.assertTrue(change_info._closed)
     self.assertEqual(
         change_info._comments_added,
-        ["Committed patchset #1 manually as r12345 (presubmit successful)."])
+        ["Committed patchset #1 (id:1337) manually as r12345 (presubmit "
+         "successful)."])
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()