(defined-colors): Doc fix.

diff --git a/lisp/faces.el b/lisp/faces.el
index 14c57ed6e34273f1a0933542728eea4e33d871db..b2ca6dcce3232cd16a67353b7337e0e81b5c9665 100644 (file)
--- a/lisp/faces.el
+++ b/lisp/faces.el
@@ -1517,7 +1517,8 @@ If there is neither a user setting nor a default for FACE, return nil."
   "Return a list of colors supported for a particular frame.
 The argument FRAME specifies which frame to try.
 The value may be different for frames on different display types.
-If FRAME doesn't support colors, the value is nil."
+If FRAME doesn't support colors, the value is nil.
+If FRAME is nil, that stands for the selected frame."
   (if (memq (framep (or frame (selected-frame))) '(x w32 mac))
       (xw-defined-colors frame)
     (mapcar 'car (tty-color-alist frame))))