Changing license header, again!

appengine/config_service/validation_test.py

 #!/usr/bin/env python
 # Copyright 2015 The LUCI Authors. All rights reserved.
-# Use of this source code is governed by the Apache v2.0 license that can be
-# found in the LICENSE file.
+# Use of this source code is governed under the Apache License, Version 2.0
+# that can be found in the LICENSE file.
 
 import base64
 import logging
 
 from test_env import future
 import test_env
 test_env.setup_test_env()
 
 from google.appengine.ext import ndb
 
@@ skipping 459 matching lines @@
                   'config_set: projects/baz/refs/x\n'
                   'path: qux.cfg\n'
                   'response: %r' % res),
               ),
         ],
     )
 
 
 if __name__ == '__main__':
   test_env.main()