Changing license header, again!

appengine/gce-backend/metadata.py

 # Copyright 2016 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.
 
 """Utilities for operating on instance metadata."""
 
 import json
 import logging
 
 from google.appengine.ext import ndb
 
 from components import gce
 from components import net
@@ skipping 309 matching lines @@
   for instance in models.Instance.query():
     if instance.active_metadata_update and instance.active_metadata_update.url:
       if not utils.enqueue_task(
           '/internal/queues/check-instance-metadata-operation',
           'check-instance-metadata-operation',
           params={
               'key': instance.key.urlsafe(),
           },
       ):
         logging.warning('Failed to enqueue task for Instance: %s', instance.key)