Largely reduce the number of pylint warnings and fix one typo.

gcl.py

 #!/usr/bin/python
 # Copyright (c) 2010 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 simplifies working with groups
 of files.
 """
 
@@ skipping 17 matching lines @@
     import json
     # Some versions of python2.5 have an incomplete json module.  Check to make
     # sure loads exists.
     # pylint: disable=W0104
     json.loads
   except (ImportError, AttributeError):
     # Import the one included in depot_tools.
     sys.path.append(os.path.join(os.path.dirname(__file__), 'third_party'))
     import simplejson as json
 
-import breakpad
+import breakpad  # pylint: disable=W0611
 
 # gcl now depends on gclient.
 from scm import SVN
 import gclient_utils
 
 __version__ = '1.2'
 
 
 CODEREVIEW_SETTINGS = {
   # To make gcl send reviews to a server, check in a file named
@@ skipping 1328 matching lines @@
     if e.code != 500:
       raise
     print >> sys.stderr, (
         'AppEngine is misbehaving and returned HTTP %d, again. Keep faith '
         'and retry or visit go/isgaeup.\n%s') % (e.code, str(e))
     return 1
 
 
 if __name__ == "__main__":
   sys.exit(main(sys.argv[1:]))