== sanity test 413k: QoS mkdir exclude prefixes ========== 23:30:58 (1770438658)
lmv.lustre-clilmv-ffffa00bae8b5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa00bae8b5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa00bae8b5800.qos_exclude_prefixes=_temporary