== sanity test 413k: QoS mkdir exclude prefixes ========== 22:08:16 (1787105296)
lmv.lustre-clilmv-ffff988c07cab000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff988c07cab000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff988c07cab000.qos_exclude_prefixes=_temporary