* midnight.el: Replace `illegal' with `invalid'.

lisp/ChangeLog

@@ -2,6 +2,7 @@
 	* calc/calc-forms.el, calc/calc-sel: Replace `illegal' with
 	`invalid'.
+	* midnight.el: Replace `illegal' with `invalid'.
 2005-03-24  Stefan Monnier  <monnier@iro.umontreal.ca>

lisp/midnight.el

 ;;; midnight.el --- run something every midnight, e.g., kill old buffers
 
-;;; Copyright (C) 1998, 2004 Free Software Foundation, Inc.
+;;; Copyright (C) 1998, 2004, 2005 Free Software Foundation, Inc.
 
 ;; Author: Sam Steingold <sds@usa.net>
 ;; Maintainer: Sam Steingold <sds@usa.net>
@@ -215,7 +215,7 @@ the time when it is run.")
 Sets the first argument SYMB (which must be symbol `midnight-delay')
 to its second argument TM."
   (assert (eq symb 'midnight-delay) t
-          "Illegal argument to `midnight-delay-set': `%s'")
+          "Invalid argument to `midnight-delay-set': `%s'")
   (set symb tm)
   (when (timerp midnight-timer) (cancel-timer midnight-timer))
   (setq midnight-timer