== sanity test 413k: QoS mkdir exclude prefixes ========== 15:42:09 (1780342929)
lmv.lustre-clilmv-ffff9ab9e562a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9ab9e562a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9ab9e562a000.qos_exclude_prefixes=_temporary