Milo: Buildbot build grpc endpoint fix

milo/appengine/buildbot/grpc.go

 // Copyright 2016 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 buildbot
 
 import (
         "bytes"
         "compress/gzip"
         "encoding/json"
@@ skipping 18 matching lines @@
         c context.Context, req *milo.BuildbotBuildRequest) (
         *milo.BuildbotBuildJSON, error) {
 
         if req.Master == "" {
                 return nil, grpc.Errorf(codes.InvalidArgument, "No master specified")
         }
         if req.Builder == "" {
                 return nil, grpc.Errorf(codes.InvalidArgument, "No builder specified")
         }
 
-        b, err := build(c, req.Master, req.Builder, int(req.BuildNum))
+        b, err := getBuild(c, req.Master, req.Builder, int(req.BuildNum))
         switch {
         case err == errBuildNotFound:
                 return nil, grpc.Errorf(codes.NotFound, "Build not found")
         case err != nil:
                 return nil, err
         }
 
         bs, err := json.Marshal(b)
         if err != nil {
                 return nil, err
@@ skipping 85 matching lines @@
 
         return &milo.CompressedMasterJSON{
                 Internal: entry.Internal,
                 Modified: &google.Timestamp{
                         Seconds: entry.Modified.Unix(),
                         Nanos:   int32(entry.Modified.Nanosecond()),
                 },
                 Data: gzbs.Bytes(),
         }, nil
 }