== sanity test 413k: QoS mkdir exclude prefixes ========== 03:22:02 (1747812122)
lmv.lustre-clilmv-ffff88012b770000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012b770000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012b770000.qos_exclude_prefixes=_temporary