== sanity test 413k: QoS mkdir exclude prefixes ========== 22:15:47 (1789611347)
lmv.lustre-clilmv-ffff9e9ac6972800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e9ac6972800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e9ac6972800.qos_exclude_prefixes=_temporary