lisp/*.el: Lexical-binding cleanup.

[bpt/emacs.git] / lisp / ps-mule.el

diff --git a/lisp/ps-mule.el b/lisp/ps-mule.el
index 7c974d3..d95719b 100644 (file)
--- a/lisp/ps-mule.el
+++ b/lisp/ps-mule.el
@@ -632,7 +632,7 @@ f2, f3, h0, h1, and H0 respectively."
            (ps-output "]"))))))
   (ps-output " ] " (if (nth 3 composition) "RLC" "RBC") "\n"))
 
-(defun ps-mule-plot-string (from to &optional bg-color)
+(defun ps-mule-plot-string (from to &optional _bg-color)
   "Generate PostScript code for plotting characters in the region FROM and TO.
 
 Optional argument BG-COLOR is ignored.