== sanity test 413k: QoS mkdir exclude prefixes ========== 20:12:07 (1753747927)
lmv.lustre-clilmv-ffff8a181088a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a181088a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a181088a800.qos_exclude_prefixes=_temporary