== sanity test 413k: QoS mkdir exclude prefixes ========== 03:16:59 (1787555819)
lmv.lustre-clilmv-ffff8aa96d8bc000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8aa96d8bc000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8aa96d8bc000.qos_exclude_prefixes=_temporary