== sanity test 413k: QoS mkdir exclude prefixes ========== 14:24:38 (1744136678)
lmv.lustre-clilmv-ffff88012e710000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012e710000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012e710000.qos_exclude_prefixes=_temporary