== sanity test 413k: QoS mkdir exclude prefixes ========== 16:10:17 (1764796217)
lmv.lustre-clilmv-ffff9804d8ba5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9804d8ba5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9804d8ba5800.qos_exclude_prefixes=_temporary