* face-remap.el (text-scale-increase, text-scale-decrease)

  (text-scale-adjust): Remove &optional keyword from the arg list;
  the INC argument is not really optional, if the functions happen
  to be called from elisp.

lisp/ChangeLog

+2008-10-27  Juanma Barranquero  <lekktu@gmail.com>
+
+	* face-remap.el (text-scale-increase, text-scale-decrease)
+	(text-scale-adjust): Remove &optional keyword from the arg list;
+	the INC argument is not really optional, if the functions happen
+	to be called from elisp.
+
 2008-10-27  Dan Nicolaescu  <dann@ics.uci.edu>
 
 	* vc.el: Rename VC methods that were missed when vc-status was
@@ -11,7 +18,7 @@
 	* vc-dir.el (vc-dir-mode): Use vc-dir-printer instead of
 	vc-dir-status-printer.
 	(vc-dir-headers): Use `dir-extra-headers' instead of
-	`status-extra-headers'
+	`status-extra-headers'.
 	(vc-dir-printer): Rename from vc-dir-status-printer.
 	(vc-default-dir-extra-headers): Rename from
 	vc-default-status-extra-headers.

lisp/face-remap.el

@@ -229,7 +229,7 @@ be used to interactively modify the variable
   (force-window-update (current-buffer)))
 
 ;;;###autoload
-(defun text-scale-increase (&optional inc)
+(defun text-scale-increase (inc)
   "Increase the height of the default face in the current buffer by INC steps.
 If the new height is other than the default, `text-scale-mode' is enabled.
 
@@ -243,7 +243,7 @@ will remove any scaling currently active."
   (text-scale-mode (if (zerop text-scale-mode-amount) -1 1)))
 
 ;;;###autoload
-(defun text-scale-decrease (&optional dec)
+(defun text-scale-decrease (dec)
   "Decrease the height of the default face in the current buffer by DEC steps.
 See `text-scale-increase' for more details."
   (interactive "p")
@@ -254,7 +254,7 @@ See `text-scale-increase' for more details."
 ;;;###autoload (define-key ctl-x-map [(control ?=)] 'text-scale-adjust)
 ;;;###autoload (define-key ctl-x-map [(control ?0)] 'text-scale-adjust)
 ;;;###autoload
-(defun text-scale-adjust (&optional inc)
+(defun text-scale-adjust (inc)
   "Increase or decrease the height of the default face in the current buffer.
 
 The actual adjustment made depends on the final component of the