Fix minor mode docstrings for the new meaning of a nil ARG.

[bpt/emacs.git] / lisp / master.el

diff --git a/lisp/master.el b/lisp/master.el
index 1ea0a24..c3e9004 100644 (file)
--- a/lisp/master.el
+++ b/lisp/master.el
@@ -72,12 +72,12 @@ You can set this variable using `master-set-slave'.")
 ;;;###autoload
 (define-minor-mode master-mode
   "Toggle Master mode.
-With no argument, this command toggles the mode.
-Non-null prefix argument turns on the mode.
-Null prefix argument turns off the mode.
+With a prefix argument ARG, enable Master mode if ARG is
+positive, and disable it otherwise.  If called from Lisp, enable
+the mode if ARG is omitted or nil.
 
-When Master mode is enabled, you can scroll the slave buffer using the
-following commands:
+When Master mode is enabled, you can scroll the slave buffer
+using the following commands:
 
 \\{master-mode-map}