(elide-head): Add :version.

lisp/ChangeLog

 2000-01-03  Dave Love  <fx@gnu.org>
 
+	* elide-head.el (elide-head) [defgroup: Add :version.
+
 	* cl-extra.el (cl-emacs-type): Remove defvar.
 	(cl-not-hash-table, cl-clrhash, cl-maphash, cl-hash-table-count): Use
 	`cl-hash-table-p', not `hash-table-p'.

lisp/elide-head.el

@@ -47,6 +47,7 @@
 
 (defgroup elide-head nil
   "Eliding copyright headers and the like in source files."
+  :version "21.1"
   :prefix "elide-head"
   :group 'tools)