dnl From Jim Meyering.
dnl A wrapper around AC_FUNC_GETGROUPS.
-# Copyright (C) 1996-1997, 1999-2004, 2008-2009 Free Software Foundation, Inc.
+# Copyright (C) 1996-1997, 1999-2004, 2008-2011 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,