== sanity test 413k: QoS mkdir exclude prefixes ========== 13:51:00 (1786038660)
lmv.lustre-clilmv-ffff9a31450a8000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9a31450a8000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9a31450a8000.qos_exclude_prefixes=_temporary