== sanity test 413k: QoS mkdir exclude prefixes ========== 15:27:16 (1789586836)
lmv.lustre-clilmv-ffff89e9c34ca000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff89e9c34ca000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff89e9c34ca000.qos_exclude_prefixes=_temporary