== sanity test 413k: QoS mkdir exclude prefixes ========== 04:20:47 (1734686447)
lmv.lustre-clilmv-ffff8801302f7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8801302f7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8801302f7800.qos_exclude_prefixes=_temporary