== sanity test 413k: QoS mkdir exclude prefixes ========== 23:19:35 (1723259975)
lmv.lustre-clilmv-ffff88012e76d000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012e76d000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012e76d000.qos_exclude_prefixes=_temporary