== sanity test 413k: QoS mkdir exclude prefixes ========== 03:13:44 (1769760824)
lmv.lustre-clilmv-ffff919e186bf000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff919e186bf000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff919e186bf000.qos_exclude_prefixes=_temporary