== sanity test 413k: QoS mkdir exclude prefixes ========== 08:25:41 (1775046341)
lmv.lustre-clilmv-ffff9ff3d02f1800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9ff3d02f1800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9ff3d02f1800.qos_exclude_prefixes=_temporary