(midnight-timer): Move defvar up.

lisp/midnight.el

@@ -48,6 +48,11 @@
   :group 'calendar
   :version "20.3")
 
+(defvar midnight-timer nil
+  "Timer running the `midnight-hook' `midnight-delay' seconds after midnight.
+Use `cancel-timer' to stop it and `midnight-delay-set' to change
+the time when it is run.")
+
 (defcustom midnight-mode nil
   "*Non-nil means run `midnight-hook' at midnight.
 Setting this variable outside customize has no effect;
@@ -204,11 +209,6 @@ The default value is `clean-buffer-list'."
   (multiple-value-bind (sec min hrs) (decode-time)
     (- (* 24 60 60) (* 60 60 hrs) (* 60 min) sec)))
 
-(defvar midnight-timer nil
-  "Timer running the `midnight-hook' `midnight-delay' seconds after midnight.
-Use `cancel-timer' to stop it and `midnight-delay-set' to change
-the time when it is run.")
-
 ;;;###autoload
 (defun midnight-delay-set (symb tm)
   "Modify `midnight-timer' according to `midnight-delay'.