== sanity test 413k: QoS mkdir exclude prefixes ========== 11:47:31 (1779983251)
lmv.lustre-clilmv-ffff9d3f8f3fd800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d3f8f3fd800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d3f8f3fd800.qos_exclude_prefixes=_temporary