Milo: ACL support

milo/common/miloerror/error.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 miloerror
 
 import (
         "fmt"
 )
 
 // Error is used for all milo errors.
 type Error struct {
         Message string
         Code    int
 }
 
-func (e *Error) Error() string {
+func (e Error) Error() string {
         return fmt.Sprintf("encountered error %d, %s", e.Code, e.Message)
 }