Adding upstream version 1.34.4.

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

plugins/common/opcua/logger.go

@@ -0,0 +1,15 @@
+package opcua
+
+import (
+	"github.com/influxdata/telegraf"
+)
+
+// DebugLogger logs messages from opcua at the debug level.
+type DebugLogger struct {
+	Log telegraf.Logger
+}
+
+func (l *DebugLogger) Write(p []byte) (n int, err error) {
+	l.Log.Debug(string(p))
+	return len(p), nil
+}