[master] silence noisy logging

4287.	[bug]		Silence an overly noisy log message when message
			parsing fails. [RT #41374]

CHANGES

+4287.	[bug]		Silence an overly noisy log message when message
+			parsing fails. [RT #41374]
+
 4286.	[security]	render_ecs errors were mishandled when printing out
 			a OPT record resulting in a assertion failure.
 			(CVE-2015-8705) [RT #41397]

bin/named/client.c

@@ -2281,7 +2281,7 @@ client_request(isc_task_t *task, isc_event_t *event) {
 					       &client->opt);
 
 		ns_client_log(client, NS_LOGCATEGORY_CLIENT,
-			      NS_LOGMODULE_CLIENT, ISC_LOG_WARNING,
+			      NS_LOGMODULE_CLIENT, ISC_LOG_DEBUG(1),
 			      "message parsing failed: %s",
 			      isc_result_totext(result));
 		ns_client_error(client, result);