== sanity test 413k: QoS mkdir exclude prefixes ========== 19:29:39 (1746142179)
lmv.lustre-clilmv-ffff88007601f000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88007601f000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88007601f000.qos_exclude_prefixes=_temporary