== sanity test 413k: QoS mkdir exclude prefixes ========== 22:24:04 (1749608644)
lmv.lustre-clilmv-ffff88012a4fc800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a4fc800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a4fc800.qos_exclude_prefixes=_temporary