* lisp/net/sieve-mode.el: Use lexical-binding.

diff --git a/lisp/net/sieve-mode.el b/lisp/net/sieve-mode.el
index d6dc008e87a66e30a80712d15f4908ad2b412df1..7475a7b59d53ea5705ffb0a66243a00dbd5ca532 100644 (file)
--- a/lisp/net/sieve-mode.el
+++ b/lisp/net/sieve-mode.el
@@ -1,4 +1,4 @@
-;;; sieve-mode.el --- Sieve code editing commands for Emacs
+;;; sieve-mode.el --- Sieve code editing commands for Emacs  -*- lexical-binding: t -*-
 
 ;; Copyright (C) 2001-2020 Free Software Foundation, Inc.