== sanity test 413k: QoS mkdir exclude prefixes ========== 10:51:32 (1788879092)
lmv.lustre-clilmv-ffff9d676bcb8800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d676bcb8800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d676bcb8800.qos_exclude_prefixes=_temporary