MDL-20636 Add missing defined('MOODLE_INTERNAL') || die();

question/format/xml/format.php

@@ -15,7 +15,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-
 /**
  * Code for exporting questions as Moodle XML.
  *
@@ -26,6 +25,8 @@
  */
 
 
+defined('MOODLE_INTERNAL') || die();
+
 require_once($CFG->dirroot . '/question/format.php');
 require_once($CFG->libdir . '/xmlize.php');