== sanity test 413k: QoS mkdir exclude prefixes ========== 03:28:41 (1715585321)
lmv.lustre-clilmv-ffff88012ab39800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012ab39800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012ab39800.qos_exclude_prefixes=_temporary