== sanity test 413k: QoS mkdir exclude prefixes ========== 09:15:56 (1787577356)
lmv.lustre-clilmv-ffff91b071243800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff91b071243800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff91b071243800.qos_exclude_prefixes=_temporary