Add GPL for FSF copyright.

oldXMenu/Activate.c

 /* Copyright    Massachusetts Institute of Technology    1985	*/
-/* Copyright (C) 2001, 2002, 2003, 2004, 2005,
-                 2006, 2007 Free Software Foundation, Inc.  */
 
 #include "copyright.h"
 
+/*
+Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
+  Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
+
+
 /*
  * XMenu:	MIT Project Athena, X Window system menu package
  *