== sanity test 413k: QoS mkdir exclude prefixes ========== 09:00:04 (1785762004)
lmv.lustre-clilmv-ffff8edf82eff800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8edf82eff800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8edf82eff800.qos_exclude_prefixes=_temporary