== sanity test 413k: QoS mkdir exclude prefixes ========== 10:52:36 (1774882356)
lmv.lustre-clilmv-ffff8e1d87d76800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8e1d87d76800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8e1d87d76800.qos_exclude_prefixes=_temporary