Be more verbose when changing frame mode in ediff

* lisp/vc/ediff-util.el (ediff-toggle-multiframe): Say what
mode we toggled to (bug#21853).

Copyright-paperwork-exempt: yes

1 files changed, 5 insertions, 3 deletions

diff --git a/lisp/vc/ediff-util.el b/lisp/vc/ediff-util.el
index 5419d477810..eb5c2490a7e 100644
--- a/lisp/vc/ediff-util.el
+++ b/lisp/vc/ediff-util.el
@@ -1293,7 +1293,8 @@ which see."
 
   (cond ((eq ediff-window-setup-function 'ediff-setup-windows-multiframe)
          (setq ediff-multiframe nil)
-         (setq window-setup-func 'ediff-setup-windows-plain))
+         (setq window-setup-func 'ediff-setup-windows-plain)
+         (message "ediff is now in 'plain' mode"))
         ((eq ediff-window-setup-function 'ediff-setup-windows-plain)
          (if (ediff-in-control-buffer-p)
              (ediff-kill-bottom-toolbar))
@@ -1301,14 +1302,15 @@ which see."
                   (window-live-p ediff-control-window))
              (set-window-dedicated-p ediff-control-window nil))
          (setq ediff-multiframe t)
-         (setq window-setup-func 'ediff-setup-windows-multiframe))
+         (setq window-setup-func 'ediff-setup-windows-multiframe)
+         (message "ediff is now in 'multiframe' mode"))
         (t
          (if (and (ediff-buffer-live-p ediff-control-buffer)
                   (window-live-p ediff-control-window))
              (set-window-dedicated-p ediff-control-window nil))
          (setq ediff-multiframe t)
          (setq window-setup-func 'ediff-setup-windows-multiframe))
-        )
+         (message "ediff is now in 'multiframe' mode"))
 
   ;; change default
   (setq-default ediff-window-setup-function window-setup-func)