tar: port to recent gnulib

* gnulib.modules: Remove 'acl' and add 'file-has-acl'.

gnulib.modules

@@ -18,7 +18,6 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-acl
 alloca
 argmatch
 argp
@@ -37,6 +36,7 @@ fchownat
 fcntl-h
 fdopendir
 fdutimensat
+file-has-acl
 fileblocks
 fnmatch-gnu
 fprintftime