(message-use-mail-reply-to): Add comment.

diff --git a/lisp/message.el b/lisp/message.el
index 6f9b81c..0e255e0 100644 (file)
--- a/lisp/message.el
+++ b/lisp/message.el
@@ -447,6 +447,7 @@ query the user whether to use the value.  If it is t or the symbol
                 (const :tag "always" use)
                 (const :tag "ask" ask)))
 
+;;; XXX: 'ask and 'use are not implemented yet.
 (defcustom message-use-mail-reply-to 'ask
   "*Specifies what to do with Mail-Reply-To/Reply-To header.
 If nil, always ignore the header.  If it is t or the symbol `use', use