== sanity test 413k: QoS mkdir exclude prefixes ========== 04:04:30 (1788336270)
lmv.lustre-clilmv-ffff93c1a91cd000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff93c1a91cd000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff93c1a91cd000.qos_exclude_prefixes=_temporary