[PATCH] printf6.sub: set LC_ALL

[Grisha Levit]

The tests in printf6.sub fail if `make check' is executed in the C locale.

diff --git a/tests/printf6.sub b/tests/printf6.sub
index fbacd4d5..382943c7 100644
--- a/tests/printf6.sub
+++ b/tests/printf6.sub
@@ -11,6 +11,8 @@
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
+#LC_ALL=en_US.UTF-8
+
 # this should echo nothing
 printf '%ls'
 # this should echo a null byte