(set-face-background): Don't treat nil as a color.

diff --git a/lisp/faces.el b/lisp/faces.el
index bf9c33022840f31ac59e02ab238369630e06abbb..438b148f46d1c4aa9c7d4d7771df0d223f1c30de 100644 (file)
--- a/lisp/faces.el
+++ b/lisp/faces.el
@@ -149,7 +149,7 @@ in that frame; otherwise change each frame."
   (interactive (internal-face-interactive "background"))
   ;; For a specific frame, use gray stipple instead of gray color
   ;; if the display does not support a gray color.
-  (if (and frame (not (eq frame t))
+  (if (and frame (not (eq frame t)) color
           (not (face-color-supported-p frame color t)))
       (set-face-stipple face face-default-stipple frame)
     (if (null frame)