== sanity test 413k: QoS mkdir exclude prefixes ========== 23:06:36 (1789355196)
lmv.lustre-clilmv-ffff9e16b1292800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e16b1292800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e16b1292800.qos_exclude_prefixes=_temporary