== sanity test 413k: QoS mkdir exclude prefixes ========== 02:16:24 (1783145784)
lmv.lustre-clilmv-ffff992c79222800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff992c79222800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff992c79222800.qos_exclude_prefixes=_temporary