== sanity test 413k: QoS mkdir exclude prefixes ========== 01:34:48 (1788845688)
lmv.lustre-clilmv-ffff9de7c8f31800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9de7c8f31800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9de7c8f31800.qos_exclude_prefixes=_temporary