message-add-action doc string fix

* lisp/gnus/message.el (message-add-action): Document types.

diff --git a/lisp/gnus/message.el b/lisp/gnus/message.el
index 2ad479b59dfeed62fe6445fdfcab805cd0e6e6d9..ef010d6e9c69f481e8624f360de24a0fe0293ba5 100644 (file)
--- a/lisp/gnus/message.el
+++ b/lisp/gnus/message.el
@@ -4568,7 +4568,8 @@ This function could be useful in `message-setup-hook'."
 (custom-add-option 'message-setup-hook 'message-check-recipients)
 
 (defun message-add-action (action &rest types)
-  "Add ACTION to be performed when doing an exit of type TYPES."
+  "Add ACTION to be performed when doing an exit of type TYPES.
+Valid types are `send', `return', `exit', `kill' and `postpone'."
   (while types
     (add-to-list (intern (format "message-%s-actions" (pop types)))
                 action)))