== sanity test 413k: QoS mkdir exclude prefixes ========== 23:50:18 (1764737418)
lmv.lustre-clilmv-ffff959f3911a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff959f3911a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff959f3911a000.qos_exclude_prefixes=_temporary