== sanity test 413k: QoS mkdir exclude prefixes ========== 16:32:35 (1783974755)
lmv.lustre-clilmv-ffff8c7a44889800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c7a44889800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c7a44889800.qos_exclude_prefixes=_temporary