== sanity test 413k: QoS mkdir exclude prefixes ========== 14:34:44 (1786818884)
lmv.lustre-clilmv-ffff8a38ed3d3000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a38ed3d3000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a38ed3d3000.qos_exclude_prefixes=_temporary