Fix a variable aliasing error.

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 701 matching lines @@
   used.
   """
   previous_cwd = os.getcwd()
   if root is None:
     os.chdir(GetRepositoryRoot())
   else:
     os.chdir(root)
 
   diff = []
   for filename in files:
+    # TODO(maruel): Use SVN.DiffItem().
     # Use svn info output instead of os.path.isdir because the latter fails
     # when the file is deleted.
-    if SVN.CaptureInfo(file).get('Node Kind') == 'directory':
+    if SVN.CaptureInfo(filename).get('Node Kind') == 'directory':
       continue
     # If the user specified a custom diff command in their svn config file,
     # then it'll be used when we do svn diff, which we don't want to happen
     # since we want the unified diff.  Using --diff-cmd=diff doesn't always
     # work, since they can have another diff executable in their path that
     # gives different line endings.  So we use a bogus temp directory as the
     # config directory, which gets around these problems.
     if sys.platform.startswith("win"):
       parent_dir = tempfile.gettempdir()
     else:
@@ skipping 528 matching lines @@
       return 0
     args =["svn", command]
     root = GetRepositoryRoot()
     args.extend([os.path.join(root, x) for x in change_info.GetFileNames()])
     RunShell(args, True)
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(main())