Import new gnulib.

grub-core/gnulib/strndup.c

@@ -1,7 +1,7 @@
 /* A replacement function, for systems that lack strndup.
 
-   Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2005, 2006, 2007, 2009,
-   2010 Free Software Foundation, Inc.
+   Copyright (C) 1996-1998, 2001-2003, 2005-2007, 2009-2013 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
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>