Fix typo (which broke lisp/org.el).

Thanks to Matt Lundin for a warning about this.

lisp/org.el

@@ -1,4 +1,4 @@
-';;; org.el --- Outline-based notes management and organizer
+;;; org.el --- Outline-based notes management and organizer
 ;; Carstens outline-mode for keeping track of everything.
 ;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
 ;;   Free Software Foundation, Inc.