fix code style 4

Author: Gianluca

src/Illuminate/Database/Eloquent/Model.php

@@ -443,13 +443,11 @@ public function qualifyColumn($column)
     public function qualifyColumns($columns)
     {
         $columns = is_array($columns) ? $columns : func_get_args();
-        
         $qualifiedArray = [];
 
         foreach ($columns as $column) {
             $qualifiedArray[] = $this->qualifyColumn($column);
-        }
-        
+        }   
         return $qualifiedArray;
     }