Don't throw an exception for files with only property changes.

gcl.py

 #!/usr/bin/python
 # Copyright (c) 2006-2009 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.
 #
 # Wrapper script around Rietveld's upload.py that groups files into
 # changelists.
 
 import getpass
 import os
@@ skipping 118 matching lines @@
   command = ["svn", "status", "--xml"]
   if file is None:
     pass
   elif isinstance(file, basestring):
     command.append(file)
   else:
     command.extend(file)
 
   status_letter = {
     '': ' ',
-    'unversioned': '?',
-    'modified': 'M',
     'added': 'A',
     'conflicted': 'C',
     'deleted': 'D',
     'ignored': 'I',
+    'missing': '!',
+    'modified': 'M',
+    'normal': ' ',
     'replaced': 'R',
-    # TODO(maruel): Find the corresponding strings for X, !, ~
+    'unversioned': '?',
+    # TODO(maruel): Find the corresponding strings for X, ~
   }
   dom = ParseXML(RunShell(command))
   results = []
   if dom:
     # /status/target/entry/(wc-status|commit|author|date)
     for target in dom.getElementsByTagName('target'):
       base_path = target.getAttribute('path')
       for entry in target.getElementsByTagName('entry'):
         file = entry.getAttribute('path')
         wc_status = entry.getElementsByTagName('wc-status')
@@ skipping 1023 matching lines @@
     # the files. This allows commands such as 'gcl diff xxx' to work.
     args =["svn", command]
     root = GetRepositoryRoot()
     args.extend([os.path.join(root, x) for x in change_info.FileList()])
     RunShell(args, True)
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(main())