== sanity test 413k: QoS mkdir exclude prefixes ========== 21:35:33 (1770690933)
lmv.lustre-clilmv-ffff915e9245f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff915e9245f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff915e9245f800.qos_exclude_prefixes=_temporary