== sanity test 413k: QoS mkdir exclude prefixes ========== 07:22:58 (1778930578)
lmv.lustre-clilmv-ffff9a75457a2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9a75457a2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9a75457a2000.qos_exclude_prefixes=_temporary