== sanity test 413k: QoS mkdir exclude prefixes ========== 15:13:17 (1767730397)
lmv.lustre-clilmv-ffff945e48997800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff945e48997800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff945e48997800.qos_exclude_prefixes=_temporary