[checklicenses] OK to use 'BSD (3 clause) GPL (v2)' dual license

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 22 matching lines @@
     'Apache (v2.0)',
     'Apache (v2.0) BSD (2 clause)',
     'Apache (v2.0) GPL (v2)',
     'Apple MIT',  # https://fedoraproject.org/wiki/Licensing/Apple_MIT_License
     'APSL (v2)',
     'APSL (v2) BSD (4 clause)',
     'BSD',
     'BSD (2 clause)',
     'BSD (2 clause) MIT/X11 (BSD like)',
     'BSD (3 clause)',
+    'BSD (3 clause) GPL (v2)',
     'BSD (3 clause) ISC',
     'BSD (3 clause) LGPL (v2 or later)',
     'BSD (3 clause) LGPL (v2.1 or later)',
     'BSD (3 clause) MIT/X11 (BSD like)',
     'BSD (4 clause)',
     'BSD-like',
 
     # TODO(phajdan.jr): Make licensecheck not print BSD-like twice.
     'BSD-like MIT/X11 (BSD like)',
 
@@ skipping 485 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())