== sanity test 413k: QoS mkdir exclude prefixes ========== 20:32:49 (1746145969)
lmv.lustre-clilmv-ffff88012a607800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a607800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a607800.qos_exclude_prefixes=_temporary