(backward-delete-char-untabify-method): Add :version.

diff --git a/lisp/simple.el b/lisp/simple.el
index f9839826ff69522f972112db27f4b91dc95a885c..a41f2109de7e5e25c803d874458d89755ea20538 100644 (file)
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -1935,6 +1935,7 @@ Can be `untabify' -- turn a tab to many spaces, then delete one space;
        `all' -- delete all whitespace, including tabs, spaces and newlines;
        nil -- just delete one character."
   :type '(choice (const untabify) (const hungry) (const all) (const nil))
+  :version "20.3"
   :group 'killing)
 
 (defun backward-delete-char-untabify (arg &optional killp)