== sanity test 413k: QoS mkdir exclude prefixes ========== 21:47:12 (1786758432)
lmv.lustre-clilmv-ffff932e9d7ad000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff932e9d7ad000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff932e9d7ad000.qos_exclude_prefixes=_temporary