== sanity test 413k: QoS mkdir exclude prefixes ========== 06:14:39 (1787134479)
lmv.lustre-clilmv-ffff8da07823a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8da07823a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8da07823a000.qos_exclude_prefixes=_temporary