== sanity test 413k: QoS mkdir exclude prefixes ========== 15:01:44 (1784055704)
lmv.lustre-clilmv-ffff9c28c60af000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9c28c60af000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9c28c60af000.qos_exclude_prefixes=_temporary