== sanity test 413k: QoS mkdir exclude prefixes ========== 03:42:36 (1771404156)
lmv.lustre-clilmv-ffff90032539a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90032539a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90032539a800.qos_exclude_prefixes=_temporary