Add pylint to presubmit checks

chrome-update.py

 #!/usr/bin/python
 # Copyright (c) 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.
 
 # Author: mpcomplete
 #
 # This script updates and does a clean build of chrome for you.
 # Usage: python chrome-update.py C:\path\to\chrome\trunk
 #
@@ skipping 115 matching lines @@
   parser.add_option("", "--solution", default="src\\chrome\\chrome.sln",
                     help="path to the .sln file to build (absolute, or "
                          "relative to chrome trunk")
   parser.add_option("", "--release", action="store_true", default=False,
                     help="build the release configuration in addition of the "
                          "debug configuration.")
   parser.add_option("", "--nosync", action="store_true", default=False,
                     help="doesn't sync before building")
   parser.add_option("", "--print-latest", action="store_true", default=False,
                     help="print the latest buildable revision and exit")
-  options, args = parser.parse_args()
+  options, args = parser.parse_args(None)
 
   if options.print_latest:
     print GetRevision() or "HEAD"
     sys.exit(0)
 
   if not args:
     Message("Usage: %s <path\\to\\chrome\\root> [options]" % sys.argv[0])
     sys.exit(1)
 
   chrome_root = args[0]
@@ skipping 17 matching lines @@
     if rv != 0:
       Message("Release build failed.  Sad face :(")
 
   if rv != 0:
     sys.exit(rv)
 
   Message("Success!")
 
 if __name__ == "__main__":
   Main()