== sanity test 413k: QoS mkdir exclude prefixes ========== 16:59:20 (1781211560)
lmv.lustre-clilmv-ffff97f7c0434800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff97f7c0434800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff97f7c0434800.qos_exclude_prefixes=_temporary