== sanity test 413k: QoS mkdir exclude prefixes ========== 23:30:24 (1712028624)
lmv.lustre-clilmv-ffff8800a7c1f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a7c1f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a7c1f800.qos_exclude_prefixes=_temporary