== sanity test 413k: QoS mkdir exclude prefixes ========== 16:33:01 (1778358781)
lmv.lustre-clilmv-ffff938e09fff000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff938e09fff000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff938e09fff000.qos_exclude_prefixes=_temporary