== sanity test 413k: QoS mkdir exclude prefixes ========== 14:42:23 (1752691343)
lmv.lustre-clilmv-ffff956fc3a05000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff956fc3a05000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff956fc3a05000.qos_exclude_prefixes=_temporary