Change for PSR-2 Coding Standard compliance

Author: PabloCamp0s

src/EloquentDataTable.php

@@ -131,8 +131,7 @@ protected function resolveRelationColumn($column)
     protected function isMorphRelation($relation)
     {
         $isMorph = false;
-        if ($relation !== null && $relation !== '')
-        {
+        if ($relation !== null && $relation !== '') {
             $relationParts = explode('.', $relation);
             $firstRelation = array_shift($relationParts);
             $isMorph       = $this->query->getModel()->$firstRelation() instanceof MorphTo;