Fix gh21901.phpt expected output when no ini file is loaded

Author: iluuu1994

sapi/cli/tests/gh21901.phpt

@@ -7,7 +7,7 @@ $cmd = $php_escaped . ' -n -d foo=bar --ini';
 echo shell_exec($cmd);
 ?>
 --EXPECTF--
-Configuration File (php.ini) Path: "%S"
-Loaded Configuration File:         "%S"
+Configuration File (php.ini) Path: %s
+Loaded Configuration File:         %s
 Scan for additional .ini files in: %s
 Additional .ini files parsed:      %s