(spam group): Add :version.

diff --git a/lisp/gnus/spam.el b/lisp/gnus/spam.el
index 1dc9058dd1fd062e71f864eaadb72b4a5f785ee3..075408b8fc76b45b3f72e51af99cb5cc62750f95 100644 (file)
--- a/lisp/gnus/spam.el
+++ b/lisp/gnus/spam.el
@@ -76,7 +76,8 @@
 ;;; Main parameters.
 
 (defgroup spam nil
-  "Spam configuration.")
+  "Spam configuration."
+  :version "21.4")
 
 (defcustom spam-directory (nnheader-concat gnus-directory "spam/")
   "Directory for spam whitelists and blacklists."