== sanity test 413k: QoS mkdir exclude prefixes ========== 09:27:51 (1787837271)
lmv.lustre-clilmv-ffff8cbbe16a5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8cbbe16a5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8cbbe16a5800.qos_exclude_prefixes=_temporary