syslogd logs "No hideMessage configured" though it is really not needed

due to the xsds specification the syslogd configuration doesn't need a hide message config:

<element name="syslogd-configuration-group">
<complexType>
<sequence>
<element maxOccurs="1" minOccurs="0" ref="types:ueiList"/>
<element maxOccurs="1" minOccurs="0" ref="types:hideMessage"/>
...

but if omitted syslogd.log will contain hundred of thousands of entries like

WARN [SyslogReceiverJavaNetImpl-Thread-13] o.o.n.s.ConvertToEvent: No hide-Message configured.

Obviously they are created for every received syslog.

We are using
parser="org.opennms.netmgt.syslogd.Rfc5424SyslogParser"