== sanity test 413k: QoS mkdir exclude prefixes ========== 08:01:37 (1749124897)
lmv.lustre-clilmv-ffff88013739a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88013739a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88013739a000.qos_exclude_prefixes=_temporary