nndoc.el (nndoc-dissect-mime-parts-sub): Fix last change

[gnus] / lisp / gnus-async.el

diff --git a/lisp/gnus-async.el b/lisp/gnus-async.el
index c5d6433..d0afd1a 100644 (file)
--- a/lisp/gnus-async.el
+++ b/lisp/gnus-async.el
@@ -76,7 +76,7 @@ The function will be called narrowed to the region of the article
 that was fetched."
   :version "24.1"
   :group 'gnus-asynchronous
-  :type 'function)
+  :type '(choice (const nil) function))
 
 ;;; Internal variables.