== sanity test 413k: QoS mkdir exclude prefixes ========== 05:08:01 (1787130481)
lmv.lustre-clilmv-ffff8c204a78c000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c204a78c000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c204a78c000.qos_exclude_prefixes=_temporary