== sanity test 413k: QoS mkdir exclude prefixes ========== 01:30:48 (1788672648)
lmv.lustre-clilmv-ffff9801080fe800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9801080fe800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9801080fe800.qos_exclude_prefixes=_temporary