Change gae to apache 2 license.

service/datastore/properties_test.go

-// 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 datastore
 
 import (
         "fmt"
         "math"
         "sort"
         "testing"
         "time"
 
@@ skipping 295 matching lines @@
                                                                 cmpBS, _ := c.conv(tc.cmpS)
                                                                 So(cmpByteSequence(bs, cmpBS), tc.assertion, 0)
                                                         })
                                                 }
                                         }
                                 })
                         }
                 }
         })
 }