;;; button.el --- clickable buttons
;;
-;; Copyright (C) 2001-2011 Free Software Foundation, Inc.
+;; Copyright (C) 2001-2012 Free Software Foundation, Inc.
;;
;; Author: Miles Bader <miles@gnu.org>
;; Keywords: extensions
;; button face may not be visible. Using overlays avoids this.
;;
;; Using `define-button-type' to define default properties for buttons
-;; is not necessary, but it is is encouraged, since doing so makes the
+;; is not necessary, but it is encouraged, since doing so makes the
;; resulting code clearer and more efficient.
;;