winner-mode shows message "Group dumped" on every window switch.

[Junker]

Every time i switch window winner-mode shows annoying message "Group dumped".
It can be fixed if use "(stumpwm::dump-to-file (stumpwm:dump-group (stumpwm:current-group)) file)" instead of command "stumpwm:dump-group-to-file" in dumper.lisp

fixed fun:

(defun dump-group-to-file (&rest args)
  (declare (ignore args))
  (let* ((group-number (current-group-number)))
    (check-ids group-number *current-ids* *max-ids*)
    (stumpwm::dump-to-file (stumpwm:dump-group (stumpwm:current-group))
     (dump-name group-number (incf (gethash group-number *current-ids*))))
    (when (> (gethash group-number *current-ids*)
             (gethash group-number *max-ids*))
      (setf (gethash group-number *max-ids*)
            (gethash group-number *current-ids*)))))

[dmb2]

This is a very rare case where I don't mind using the internal symbol. Maybe someday a verbose setting will be used and we can revert this. I've updated it for now.