Fix log entry (#37272) (#37282)

This commit fixes a warn log entry that was missing the section
stating that log level debug contains more detailed information like
the raw event and cause for the error.

(cherry picked from commit be42a33)

Co-authored-by: Tiago Queiroz <tiago.queiroz@elastic.co>

libbeat/outputs/elasticsearch/client.go

@@ -446,8 +446,8 @@ func (client *Client) bulkCollectPublishFails(result eslegclient.BulkResult, dat
 					}
 				} else { // drop
 					stats.nonIndexable++
-					client.log.Warnf("Cannot index event (status=%v): dropping event!", status)
-					client.log.Debugf("Cannot index event %#v (status=%v): %s, dropping event! Enable debug logs to view the event and cause.", data[i], status, msg)
+					client.log.Warnf("Cannot index event (status=%v): dropping event! Enable debug logs to view the event and cause.", status)
+					client.log.Debugf("Cannot index event %#v (status=%v): %s, dropping event!", data[i], status, msg)
 					continue
 				}
 			}