== sanity test 413k: QoS mkdir exclude prefixes ========== 03:00:04 (1784703604)
lmv.lustre-clilmv-ffffa04a03560000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa04a03560000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa04a03560000.qos_exclude_prefixes=_temporary