== sanity test 413k: QoS mkdir exclude prefixes ========== 23:07:44 (1763352464)
lmv.lustre-clilmv-ffff89dea07b6800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff89dea07b6800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff89dea07b6800.qos_exclude_prefixes=_temporary