Make a nil parameter switch variable-pitch-mode on

* lisp/face-remap.el (variable-pitch-mode): Make a nil parameter
switch the mode on instead of toggling (bug#19384).

diff --git a/lisp/face-remap.el b/lisp/face-remap.el
index 1a0cc646c35948acb5134f267425e9b5bb4e2e9b..5cdecb92ee018e76a96893921953b179bc0566d4 100644 (file)
--- a/lisp/face-remap.el
+++ b/lisp/face-remap.el
@@ -474,7 +474,7 @@ may be more appropriate."
 An interface to `buffer-face-mode' which uses the `variable-pitch' face.
 Besides the choice of face, it is the same as `buffer-face-mode'."
   (interactive (list (or current-prefix-arg 'toggle)))
-  (buffer-face-mode-invoke 'variable-pitch arg
+  (buffer-face-mode-invoke 'variable-pitch (or arg t)
                           (called-interactively-p 'interactive)))