== sanity test 413k: QoS mkdir exclude prefixes ========== 18:31:22 (1777501882)
lmv.lustre-clilmv-ffff9abd89b31000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9abd89b31000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9abd89b31000.qos_exclude_prefixes=_temporary