Style fixes

Author: keithbrink

src/Serializers/Native.php

@@ -462,7 +462,7 @@ protected function mapByReference(&$data)
 
             if ($data instanceof \DateTime) {
                 $this->scope[$instance] = $data;
-                
+
                 return;
             }
 

tests/SerializerTest.php

@@ -404,7 +404,7 @@ function () {
 test('serializes carbon objects', function () {
     $carbon = new \Carbon\Carbon('now');
 
-    $closure = function () use ($carbon){
+    $closure = function () use ($carbon) {
         return $carbon;
     };