Add checklicenses exception for new location of clang_format scripts.

tools/checklicenses/checklicenses.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Makes sure that all files contain proper licensing information."""
 
 
 import optparse
 import os.path
@@ skipping 145 matching lines @@
         'UNKNOWN',
     ],
 
     # http://crbug.com/326117
     # https://bitbucket.org/chrisatlee/poster/issue/21
     'third_party/chromite/third_party/poster': [
         'UNKNOWN',
     ],
 
     # http://crbug.com/333508
+    'third_party/clang_format/script': [
+        'UNKNOWN',
+    ],
     'third_party/clang_format/scripts': [
         'UNKNOWN',
     ],
 
     # Not used. http://crbug.com/156020
     # Using third_party/cros_dbus_cplusplus/cros_dbus_cplusplus.gyp instead.
     'third_party/cros_dbus_cplusplus/source/autogen.sh': [
         'UNKNOWN',
     ],
     # Included in the source tree but not built. http://crbug.com/156020
@@ skipping 357 matching lines @@
   option_parser.add_option('--ignore-suppressions',
                            action='store_true',
                            default=False,
                            help='Ignore path-specific license whitelist.')
   options, args = option_parser.parse_args()
   return check_licenses(options, args)
 
 
 if '__main__' == __name__:
   sys.exit(main())