== sanity test 413k: QoS mkdir exclude prefixes ========== 23:18:54 (1788837534)
lmv.lustre-clilmv-ffff8b5c95b47000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8b5c95b47000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8b5c95b47000.qos_exclude_prefixes=_temporary