LogDog: Update client/bootstrap to generate URLs.

logdog/client/butlerlib/streamclient/client_namedPipe_posix.go

Index: logdog/client/butlerlib/streamclient/client_namedPipe_posix.go
diff --git a/logdog/client/butlerlib/streamclient/client_namedPipe_posix.go b/logdog/client/butlerlib/streamclient/client_namedPipe_posix.go
index 6fd30d70ecc9d17c7275f9534c309b46053a98fb..5ae680695e6a630223eeed158920deef7ec182fb 100644
--- a/logdog/client/butlerlib/streamclient/client_namedPipe_posix.go
+++ b/logdog/client/butlerlib/streamclient/client_namedPipe_posix.go
@@ -32,7 +32,9 @@ func newUnixSocketClient(path string) (Client, error) {
 		return nil, fmt.Errorf("not a named pipe: [%s]", path)
 	}
 
-	return &clientImpl{func() (io.WriteCloser, error) {
-		return net.Dial("unix", path)
-	}}, nil
+	return &clientImpl{
+		factory: func() (io.WriteCloser, error) {
+			return net.Dial("unix", path)
+		},
+	}, nil
 }