Popover admin interface bug

popoveradmin.php line 223. reads

<input type='hidden' name='popovercheck[order]' id='in-positive-rules' value='<? echo esc_attr($popover_check['order']); ?>' />

should read

<input type='hidden' name='popovercheck[order]' id='in-positive-rules' value='<?php echo esc_attr($popover_check['order']); ?>' /></p>

opening php tag missing "php"