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

git-try

 #!/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 for trychange.py for git checkout."""
 
 import logging
 import sys
 
-import breakpad
+import breakpad  # pylint: disable=W0611
 
 import gclient_utils
 from scm import GIT
 import third_party.upload
 import trychange
 
 
 def GetRietveldIssueNumber():
   try:
     return GIT.Capture(
@@ skipping 35 matching lines @@
     sys.exit(trychange.TryChange(
         args, file_list=[], swallow_exception=False,
         prog='git-try',
         extra_epilog='\n'
                      'git-try will diff against your tracked branch and will '
                      'detect your rietveld\n'
                      'code review if you are using git-cl\n'))
   except third_party.upload.ClientLoginError, e:
     print('Got an exception while trying to log in to Rietveld.')
     print(str(e))