* lisp/progmodes/cwarn.el: Use lexical-binding.

diff --git a/lisp/progmodes/cwarn.el b/lisp/progmodes/cwarn.el
index 63b344bea16a2a47b7a6e3d9ea1515f820883e28..7fd592fb2e1985cdb9158a154e6f2b1c312f308d 100644 (file)
--- a/lisp/progmodes/cwarn.el
+++ b/lisp/progmodes/cwarn.el
@@ -1,4 +1,4 @@
-;;; cwarn.el --- highlight suspicious C and C++ constructions
+;;; cwarn.el --- highlight suspicious C and C++ constructions  -*- lexical-binding: t -*-
 
 ;; Copyright (C) 1999-2021 Free Software Foundation, Inc.