== sanity test 413k: QoS mkdir exclude prefixes ========== 08:05:45 (1786536345)
lmv.lustre-clilmv-ffff8a1ee105a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a1ee105a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a1ee105a000.qos_exclude_prefixes=_temporary