== sanity test 413k: QoS mkdir exclude prefixes ========== 14:00:36 (1774893636)
lmv.lustre-clilmv-ffff8eca116a2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8eca116a2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8eca116a2000.qos_exclude_prefixes=_temporary