== sanity test 413k: QoS mkdir exclude prefixes ========== 19:24:42 (1712273082)
lmv.lustre-clilmv-ffff880078d6f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff880078d6f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff880078d6f800.qos_exclude_prefixes=_temporary