== sanity test 413k: QoS mkdir exclude prefixes ========== 11:11:22 (1766419882)
lmv.lustre-clilmv-ffff8ec81037b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ec81037b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ec81037b000.qos_exclude_prefixes=_temporary