repeat-mode: Don't echo unset keys in help message

* repeat.el (repeat-echo-message-string): Check if the key is set.
(bug#55977)

diff --git a/lisp/repeat.el b/lisp/repeat.el
index ea4e3d0bd81d9496a7be65155ec550a3b2bd5450..94ea9f7ac1fe4bd5096788b84c84d156c0958506 100644 (file)
--- a/lisp/repeat.el
+++ b/lisp/repeat.el
@@ -500,7 +500,7 @@ See `describe-repeat-maps' for a list of all repeatable commands."
 (defun repeat-echo-message-string (keymap)
   "Return a string with a list of repeating keys."
   (let (keys)
-    (map-keymap (lambda (key _) (push key keys)) keymap)
+    (map-keymap (lambda (key cmd) (and cmd (push key keys))) keymap)
     (format-message "Repeat with %s%s"
                     (mapconcat (lambda (key)
                                  (key-description (vector key)))