== sanity test 413k: QoS mkdir exclude prefixes ========== 06:40:19 (1788518419)
lmv.lustre-clilmv-ffff9d7a83c3b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d7a83c3b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d7a83c3b000.qos_exclude_prefixes=_temporary