== sanity test 413k: QoS mkdir exclude prefixes ========== 23:25:17 (1783567517)
lmv.lustre-clilmv-ffff9fbe490a1800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9fbe490a1800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9fbe490a1800.qos_exclude_prefixes=_temporary