Make .php_cs compatible with PHP-CS-Fixer v2

Author: soullivaneuh

.php_cs

@@ -14,8 +14,18 @@ For the full copyright and license information, please view the LICENSE
 file that was distributed with this source code.
 EOF;
 
-HeaderCommentFixer::setHeader($header);
+// PHP-CS-Fixer 1.x
+if (method_exists('Symfony\CS\Fixer\Contrib\HeaderCommentFixer', 'getHeader')) {
+    HeaderCommentFixer::setHeader($header);
+}
 
-return ConfigBridge::create()
-    ->setUsingCache(true)
-;
+$config = ConfigBridge::create();
+
+// PHP-CS-Fixer 2.x
+if (method_exists($config, 'setRules')) {
+    $config->setRules(array_merge($config->getRules(), array(
+        'header_comment' => array('header' => $header)
+    )));
+}
+
+return $config;