(cal-menu-x-popup-menu): Fix argument of error call.

diff --git a/lisp/calendar/cal-menu.el b/lisp/calendar/cal-menu.el
index 5244fe667083415456c9461b535e223175b7a313..cc7538133ba1c28981fee839b8b9dc7467334bea 100644 (file)
--- a/lisp/calendar/cal-menu.el
+++ b/lisp/calendar/cal-menu.el
@@ -166,7 +166,7 @@
 not available."
   (if (display-popup-menus-p)
       (x-popup-menu position menu)
-    (error "Popup menus are not available on this system.")))
+    (error "Popup menus are not available on this system")))
 
 (defun cal-menu-list-holidays-year ()
   "Display a list of the holidays of the selected date's year."