== sanity test 413k: QoS mkdir exclude prefixes ========== 17:24:42 (1786569882)
lmv.lustre-clilmv-ffff8c7d09fb9800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c7d09fb9800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c7d09fb9800.qos_exclude_prefixes=_temporary