* lisp/mail/mail-parse.el: Use lexical-binding.

diff --git a/lisp/mail/mail-parse.el b/lisp/mail/mail-parse.el
index 894313633dafb1ddd5df524a42221e1c59cd58dc..e0274c8a11b35ba8f4adba7a12d0992be40347a5 100644 (file)
--- a/lisp/mail/mail-parse.el
+++ b/lisp/mail/mail-parse.el
@@ -1,4 +1,4 @@
-;;; mail-parse.el --- Interface functions for parsing mail
+;;; mail-parse.el --- Interface functions for parsing mail  -*- lexical-binding: t -*-
 
 ;; Copyright (C) 1998-2020 Free Software Foundation, Inc.