== sanity test 413k: QoS mkdir exclude prefixes ========== 07:18:15 (1789125495)
lmv.lustre-clilmv-ffff8eef064f1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8eef064f1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8eef064f1000.qos_exclude_prefixes=_temporary