== sanity test 413k: QoS mkdir exclude prefixes ========== 10:47:46 (1788878866)
lmv.lustre-clilmv-ffff8c47c2fd2800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c47c2fd2800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c47c2fd2800.qos_exclude_prefixes=_temporary