From 594cfe2edb82ce3b7c03a5376fed1a58805ee939 Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Tue, 10 Sep 2019 11:15:55 +0200
Subject: [PATCH] Simplify usage of dirname()

---
 Caster/LinkStub.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Caster/LinkStub.php b/Caster/LinkStub.php
index 84a8b10d..d18b359e 100644
--- a/Caster/LinkStub.php
+++ b/Caster/LinkStub.php
@@ -71,7 +71,7 @@ private function getComposerRoot($file, &$inVendor)
             foreach (get_declared_classes() as $class) {
                 if ('C' === $class[0] && 0 === strpos($class, 'ComposerAutoloaderInit')) {
                     $r = new \ReflectionClass($class);
-                    $v = \dirname(\dirname($r->getFileName()));
+                    $v = \dirname($r->getFileName(), 2);
                     if (file_exists($v.'/composer/installed.json')) {
                         self::$vendorRoots[] = $v.\DIRECTORY_SEPARATOR;
                     }