== sanity test 413k: QoS mkdir exclude prefixes ========== 14:59:20 (1758826760)
lmv.lustre-clilmv-ffff9bf9a9b75000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9bf9a9b75000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9bf9a9b75000.qos_exclude_prefixes=_temporary