* lisp/simple.el (undo-redo): Doc fix.

diff --git a/lisp/simple.el b/lisp/simple.el
index 3b2b5c92e944488d7e4995b31566fdd7bce33d22..b5002dd1898aac546fe1ded03f5e89a3058b8d17 100644 (file)
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -2752,7 +2752,8 @@ Contrary to `undo', this will not redo a previous undo."
   (let ((undo-no-redo t)) (undo arg)))
 
 (defun undo-redo (&optional arg)
-  "Undo the last ARG undos."
+  "Undo the last ARG undos, i.e., redo the last ARG changes.
+Interactively, ARG is the prefix numeric argument and defaults to 1."
   (interactive "*p")
   (cond
    ((not (undo--last-change-was-undo-p buffer-undo-list))