:type '(repeat sexp)) ; Fixme: improve this
(defcustom message-required-headers '((optional . References) From)
- "*Headers to be generated or promted for when sending a message.
+ "*Headers to be generated or prompted for when sending a message.
Also see `message-required-news-headers' and
-1message-required-mail-headers'."
+`message-required-mail-headers'."
:group 'message-news
:group 'message-headers
:type '(repeat sexp))