From ba9db1c5599fdb2b8cd539ac97294ba189c7341f Mon Sep 17 00:00:00 2001
From: Chong Yidong <cyd@stupidchicken.com>
Date: Sun, 1 Mar 2009 19:24:15 +0000
Subject: [PATCH] Add comment.

---
 lisp/abbrev.el | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lisp/abbrev.el b/lisp/abbrev.el
index 5b4ffe3ae8f..9092be584f4 100644
--- a/lisp/abbrev.el
+++ b/lisp/abbrev.el
@@ -522,6 +522,7 @@ the current abbrev table before abbrev lookup happens."
       (setplist newsym (symbol-plist sym)))
     (abbrev-table-put table :abbrev-table-modiff
                       (1+ (abbrev-table-get table :abbrev-table-modiff))))
+  ;; For backward compatibility, always return nil.
   nil)
 
 (defun define-abbrev (table name expansion &optional hook &rest props)
-- 
2.39.2