Usage: test_mount_optlist [testoptions] Tests: --append-str [linux|user] append to the list --prepend-str [linux|user] prepend to the list --set-str [linux|user] set to the list --append-flg linux|user append to the list --set-flg linux|user set to the list --get-str [linux|user] all options in string --get-flg linux|user all options by flags