LogDog: Update client/bootstrap to generate URLs.

logdog/client/butlerlib/streamclient/local.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 streamclient
 
 import (
         "io"
 
         "github.com/luci/luci-go/logdog/client/butler"
@@ skipping 20 matching lines @@
         pr, pw := io.Pipe()
         defer func() {
                 if err != nil {
                         pr.Close()
                         pw.Close()
                 }
         }()
 
         props := f.Properties()
         stream := streamImpl{
-                Properties:  props,
                 WriteCloser: pw,
+                props:       props,
         }
 
         // Add the Stream to the Butler.
-        if err = c.AddStream(pr, *props); err != nil {
+        if err = c.AddStream(pr, props); err != nil {
                 return
         }
         return &stream, nil
 }