== sanity test 413k: QoS mkdir exclude prefixes ========== 05:06:38 (1787389598)
lmv.lustre-clilmv-ffff8d7ae5957800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d7ae5957800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d7ae5957800.qos_exclude_prefixes=_temporary