== sanity test 413k: QoS mkdir exclude prefixes ========== 23:45:07 (1787197507)
lmv.lustre-clilmv-ffff8f1289fe1800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f1289fe1800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f1289fe1800.qos_exclude_prefixes=_temporary