== sanity test 413k: QoS mkdir exclude prefixes ========== 14:46:32 (1758739592)
lmv.lustre-clilmv-ffff8c2e04d10800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c2e04d10800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c2e04d10800.qos_exclude_prefixes=_temporary