In "pylint: disable=" comments in webkitpy, use symbolic names.

third_party/WebKit/Tools/Scripts/webkitpy/common/multiprocessing_bootstrap.py

 # Copyright (c) 2011 Google Inc. All rights reserved.
 # Copyright (C) 2010 Chris Jerdonek (cjerdonek@webkit.org)
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 21 matching lines @@
 (which means a file in sys.path that ends in .py). In addition, we need to
 ensure that sys.path / PYTHONPATH is set and propagating correctly.
 
 This module enforces that.
 """
 
 import os
 import subprocess
 import sys
 
-from webkitpy.common import version_check   # 'unused import' pylint: disable=W0611
+from webkitpy.common import version_check  # pylint: disable=unused-import
 
 
 def run(*parts):
     up = os.path.dirname
     script_dir = up(up(up(os.path.abspath(__file__))))
     env = os.environ
     if 'PYTHONPATH' in env:
         if script_dir not in env['PYTHONPATH']:
             env['PYTHONPATH'] = env['PYTHONPATH'] + os.pathsep + script_dir
     else:
@@ skipping 14 matching lines @@
 
     try:
         # Temporary logging to try and diagnose hangs on the Windows bots.
         if 'win_chromium_rel_ng' in sys.argv:
             print "sys.exit starting"
         sys.exit(proc.returncode)
     finally:
         # Temporary logging to try and diagnose hangs on the Windows bots.
         if 'win_chromium_rel_ng' in sys.argv:
             print "sys.exit completed"