== sanity test 413k: QoS mkdir exclude prefixes ========== 14:07:03 (1740683223)
lmv.lustre-clilmv-ffff8800885b7000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800885b7000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800885b7000.qos_exclude_prefixes=_temporary