When running the following,
kafka-acls --authorizer kafka.security.auth.SimpleAclAuthorizer --authorizer-properties zookeeper.connect=localhost:2181 --topic test --add --producer --allow-host=* --allow-principal "User:CN=xxx,O=My Organization"
the acl is set as the following. The part after space is ignored.
Following is list of acls for resource: Topic:test
User:CN=xxx,O=My has Allow permission for operations: Describe from hosts: *
User:CN=xxx,O=My has Allow permission for operations: Write from hosts: *