== sanity test 413k: QoS mkdir exclude prefixes ========== 10:43:22 (1788878602)
lmv.lustre-clilmv-ffff8f614a06f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f614a06f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f614a06f800.qos_exclude_prefixes=_temporary