Added gsutil as an exception because it's downloaded by buildbot and not shipped

tools/licenses.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.
 
 """Utility for checking and processing licensing information in third_party
 directories.
 
 Usage: licenses.py <command>
 
@@ skipping 219 matching lines @@
         "License Android Compatible" : "yes",
     },
     os.path.join('third_party', 'khronos_glcts'): {
         # These sources are not shipped, are not public, and it isn't
         # clear why they're tripping the license check.
         "Name": "khronos_glcts",
         "URL": "http://no-public-url",
         "License": "Khronos",
         "License File": "NOT_SHIPPED",
     },
+    os.path.join('tools', 'telemetry', 'third_party', 'gsutil'): {
+        "Name": "gsutil",
+        "URL": "https://cloud.google.com/storage/docs/gsutil",
+        "License": "Apache 2.0",
+        "License File": "NOT_SHIPPED",
+    },
 }
 
 # Special value for 'License File' field used to indicate that the license file
 # should not be used in about:credits.
 NOT_SHIPPED = "NOT_SHIPPED"
 
 
 class LicenseError(Exception):
     """We raise this exception when a directory's licensing info isn't
     fully filled out."""
@@ skipping 215 matching lines @@
     elif command == 'credits':
         if not GenerateCredits():
             return 1
     else:
         print __doc__
         return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())