(isearch-lazy-highlight): Add :version.

diff --git a/lisp/isearch.el b/lisp/isearch.el
index 251c85cf1e9e626858fcc85f2da95bac720caa12..eb4f9a43f6ca8fa0daafa6ab14658ffb2aa25a51 100644 (file)
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -1849,6 +1849,7 @@ since they have special meaning in a regexp."
 (defgroup isearch-lazy-highlight nil
   "Lazy highlighting feature for incremental search."
   :prefix "isearch-lazy-highlight-"
+  :version "21.1"
   :group 'isearch)
 
 (defcustom isearch-lazy-highlight t