== sanity test 413k: QoS mkdir exclude prefixes ========== 21:11:44 (1770689504)
lmv.lustre-clilmv-ffff9a31512c6000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9a31512c6000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9a31512c6000.qos_exclude_prefixes=_temporary