== sanity test 413k: QoS mkdir exclude prefixes ========== 23:05:33 (1746155133)
lmv.lustre-clilmv-ffff8800b63f7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b63f7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b63f7800.qos_exclude_prefixes=_temporary