== sanity test 413k: QoS mkdir exclude prefixes ========== 23:44:40 (1790739880)
lmv.lustre-clilmv-ffff9315f8fb6000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9315f8fb6000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9315f8fb6000.qos_exclude_prefixes=_temporary