Change gae to apache 2 license.

service/datastore/query_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 (
         "math"
         "testing"
 
         "github.com/luci/luci-go/common/parallel"
         . "github.com/luci/luci-go/common/testing/assertions"
         . "github.com/smartystreets/goconvey/convey"
@@ skipping 356 matching lines @@
                                                                 return err
                                                         }
                                                 }
                                         })
                                 }
                         }
                 })
                 So(err, ShouldBeNil)
         })
 }