ext4 support d_type by default, but filetype feature is a tunable so there is still a chance to disable it for some reasons. In this case, print additional message to explicitly tell how to support d_type. Signed-off-by: Chengguang Xu <cgxu519@gmx.com> Upstream-commit: 8a21b128d4deb874c05eb81ebbc1265175ad69ba Component: engine