* lisp/play/snake.el: Use lexical-binding.

diff --git a/lisp/play/snake.el b/lisp/play/snake.el
index 70d80c464fcbfa1b87c1a841db1205a5ed08b844..00072a4c05c682f7c77e70e09f9c2510808db9be 100644 (file)
--- a/lisp/play/snake.el
+++ b/lisp/play/snake.el
@@ -1,4 +1,4 @@
-;;; snake.el --- implementation of Snake for Emacs
+;;; snake.el --- implementation of Snake for Emacs  -*- lexical-binding:t -*-
 
 ;; Copyright (C) 1997, 2001-2020 Free Software Foundation, Inc.