== sanity test 413k: QoS mkdir exclude prefixes ========== 07:19:43 (1788261583)
lmv.lustre-clilmv-ffff953c0819d000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff953c0819d000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff953c0819d000.qos_exclude_prefixes=_temporary