(display-battery): Use `add-to-list'.

2 files changed, 7 insertions, 4 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index cec95234ca2..fbcdf3e4cc7 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2000-10-10  Miles Bader  <miles@lsi.nec.co.jp>
+
+        * subr.el (add-to-list): Add optional argument APPEND.
+        * battery.el (display-battery): Use `add-to-list'.
+
 2000-10-09  Thien-Thi Nguyen  <ttn@gnu.org>
 
         * play/zone.el (zone-timer, zone-wc-tbl): Rework
diff --git a/lisp/battery.el b/lisp/battery.el
index d8171874c3d..ccafa8bf213 100644
--- a/lisp/battery.el
+++ b/lisp/battery.el
@@ -1,6 +1,6 @@
 ;;; battery.el --- display battery status information.
 
-;; Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+;; Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
 
 ;; Author: Ralph Schleicher <rs@nunatak.allgaeu.org>
 ;; Keywords: hardware
@@ -108,9 +108,7 @@ seconds."
   (interactive)
   (setq battery-mode-line-string "")
   (or global-mode-string (setq global-mode-string '("")))
-  (or (memq 'battery-mode-line-string global-mode-string)
-      (setq global-mode-string (append global-mode-string
-                                       '(battery-mode-line-string))))
+  (add-to-list 'global-mode-string 'battery-mode-line-string t)
   (and battery-update-timer (cancel-timer battery-update-timer))
   (setq battery-update-timer (run-at-time nil battery-update-interval
                                           'battery-update-handler))