Fixed #13: Incorrect coding standards search depth

Author: frenck

src/Plugin.php

@@ -269,7 +269,7 @@ private function updateInstalledPaths()
             $finder->files()
               ->ignoreVCS(true)
               ->in($packageInstallPath)
-              ->depth('> 1')
+              ->depth('>= 1')
               ->depth('< 4')
               ->name('ruleset.xml');
             foreach ($finder as $ruleset) {