Relax error message check

Author: nikic

ext/standard/tests/strings/007.phpt

@@ -13,6 +13,6 @@ var_dump(ob_get_contents());
 
 ?>
 --EXPECTF--
-Warning: php_strip_whitespace(%s): Failed to open stream: File name too long in %s007.php on line %d
+Warning: php_strip_whitespace(%s): Failed to open stream: File%Sname too long in %s007.php on line %d
 string(0) ""
 bool(false)