== sanity test 413k: QoS mkdir exclude prefixes ========== 23:16:12 (1775877372)
lmv.lustre-clilmv-ffffa09687cc5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa09687cc5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa09687cc5800.qos_exclude_prefixes=_temporary