lint: Fix up small code quality issues

include/staff/templates/sub-navigation.tmpl.php

@@ -21,5 +21,3 @@ if(($subnav=$nav->getSubMenu()) && is_array($subnav)){
                 $class, $item['href'], $item['title'], $id, $item['desc']);
     }
 }
-?>
-

scp/tickets.php

@@ -635,6 +635,6 @@ if (isset($_SERVER['HTTP_X_PJAX'])) {
 ?>
 <script type="text/javascript">
     $('#sub_nav').html(<?php echo JsonDataEncoder::encode($nav_content); ?>);
-</script><?
+</script><?php
 }
 ?>