Make more tests pass on Windows.

git_cl.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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.
 
 # Copyright (C) 2008 Evan Martin <martine@danga.com>
 
 """A git-command for integrating reviews on Rietveld."""
 
 import errno
 import logging
 import optparse
 import os
 import re
 import subprocess
 import sys
 import tempfile
 import textwrap
 import urlparse
 import urllib2
 
 try:
-  import readline  # pylint: disable=W0611
+  import readline  # pylint: disable=F0401,W0611
 except ImportError:
   pass
 
 try:
   import simplejson as json  # pylint: disable=F0401
 except ImportError:
   try:
     import json  # pylint: disable=F0401
   except ImportError:
     # Fall back to the packaged version.
@@ skipping 1390 matching lines @@
              'and retry or visit go/isgaeup.\n%s') % (e.code, str(e)))
 
   # Not a known command. Default to help.
   GenUsage(parser, 'help')
   return CMDhelp(parser, argv)
 
 
 if __name__ == '__main__':
   fix_encoding.fix_encoding()
   sys.exit(main(sys.argv[1:]))