Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/common/mqtt/mqtt_logger.go

@@ -0,0 +1,17 @@
+package mqtt
+
+import (
+	"github.com/influxdata/telegraf"
+)
+
+type mqttLogger struct {
+	telegraf.Logger
+}
+
+func (l mqttLogger) Printf(fmt string, args ...interface{}) {
+	l.Logger.Debugf(fmt, args...)
+}
+
+func (l mqttLogger) Println(args ...interface{}) {
+	l.Logger.Debug(args...)
+}