== sanity test 413k: QoS mkdir exclude prefixes ========== 00:29:35 (1789273775)
lmv.lustre-clilmv-ffff8c5548dd5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c5548dd5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c5548dd5800.qos_exclude_prefixes=_temporary