== sanity test 413k: QoS mkdir exclude prefixes ========== 21:46:23 (1781228783)
lmv.lustre-clilmv-ffffa08a432ab800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa08a432ab800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa08a432ab800.qos_exclude_prefixes=_temporary