== sanity test 413k: QoS mkdir exclude prefixes ========== 11:21:59 (1783956119)
lmv.lustre-clilmv-ffff92e849c1f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff92e849c1f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff92e849c1f800.qos_exclude_prefixes=_temporary