Change gae to apache 2 license.

service/datastore/serialize/invertible_test.go

Index: service/datastore/serialize/invertible_test.go
diff --git a/service/datastore/serialize/invertible_test.go b/service/datastore/serialize/invertible_test.go
index 89eda106c49eff44afb00cd6126597cfc0a77ac7..537abf6aa3dabfda6ef5d5f8136f224d37fb7af2 100644
--- a/service/datastore/serialize/invertible_test.go
+++ b/service/datastore/serialize/invertible_test.go
@@ -1,6 +1,6 @@
-// Copyright 2015 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.
+// Copyright 2015 The LUCI Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
 
 package serialize