== sanity test 413k: QoS mkdir exclude prefixes ========== 15:50:15 (1780343415)
lmv.lustre-clilmv-ffff92f120c8a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff92f120c8a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff92f120c8a000.qos_exclude_prefixes=_temporary