GAE CL for luci-go common refactor

service/datastore/query.go

 // 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 (
         "bytes"
         "fmt"
         "sort"
         "strings"
         "sync"
 
+        "github.com/luci/luci-go/common/data/stringset"
         "github.com/luci/luci-go/common/errors"
-        "github.com/luci/luci-go/common/stringset"
 )
 
 var (
         // ErrMultipleInequalityFilter is returned from Query.Finalize if you build a
         // query which has inequality filters on multiple fields.
         ErrMultipleInequalityFilter = errors.New(
                 "inequality filters on multiple properties in the same Query is not allowed")
 
         // ErrNullQuery is returned from Query.Finalize if you build a query for which
         // there cannot possibly be any results.
@@ skipping 737 matching lines @@
         if q.keysOnly {
                 p("KeysOnly")
         }
 
         if _, err := ret.WriteRune(')'); err != nil {
                 panic(err)
         }
 
         return ret.String()
 }