== sanity test 413k: QoS mkdir exclude prefixes ========== 11:44:22 (1788536662)
lmv.lustre-clilmv-ffff8cbb10eb3800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8cbb10eb3800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8cbb10eb3800.qos_exclude_prefixes=_temporary