== sanity test 413k: QoS mkdir exclude prefixes ========== 15:31:41 (1787859101)
lmv.lustre-clilmv-ffff88e5c8799800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88e5c8799800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88e5c8799800.qos_exclude_prefixes=_temporary