print message template to log

app/main.go

@@ -54,6 +54,8 @@ func main() {
 		log.Print("[INFO] dry mode")
 	}
 
+	log.Printf("[INFO] message template %q", opts.Template)
+
 	for event := range notifier.Go(context.Background()) {
 		err := pub.Publish(event, func(r rss.Event) string {
 			b1 := bytes.Buffer{}