== sanity test 413k: QoS mkdir exclude prefixes ========== 12:55:44 (1777568144)
lmv.lustre-clilmv-ffff9d59c5079800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d59c5079800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d59c5079800.qos_exclude_prefixes=_temporary