== sanity test 413k: QoS mkdir exclude prefixes ========== 15:03:20 (1788980600)
lmv.lustre-clilmv-ffff984444b21000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff984444b21000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff984444b21000.qos_exclude_prefixes=_temporary