== sanity test 413k: QoS mkdir exclude prefixes ========== 09:33:52 (1790948032)
lmv.lustre-clilmv-ffff917ed0768800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff917ed0768800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff917ed0768800.qos_exclude_prefixes=_temporary