== sanity test 413k: QoS mkdir exclude prefixes ========== 11:18:12 (1788189492)
lmv.lustre-clilmv-ffff9dcac8cfa000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dcac8cfa000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dcac8cfa000.qos_exclude_prefixes=_temporary