CS: clean some whitespaces/indentation

Filesystem.php

@@ -224,6 +224,7 @@ public function chmod(string|iterable $files, int $mode, int $umask = 0000, bool
      * Change the owner of an array of files or directories.
      *
      * This method always throws on Windows, as the underlying PHP function is not supported.
+     *
      * @see https://www.php.net/chown
      *
      * @param string|int $user      A user name or number
@@ -253,6 +254,7 @@ public function chown(string|iterable $files, string|int $user, bool $recursive
      * Change the group of an array of files or directories.
      *
      * This method always throws on Windows, as the underlying PHP function is not supported.
+     *
      * @see https://www.php.net/chgrp
      *
      * @param string|int $group     A group name or number