Fixes for exporting

cmd/createbatch/main.go

@@ -18,10 +18,10 @@ func main() {
 		log.Fatalf("finalizing failed: %v", err)
 	}
 
-	xml, err := xml.Marshal(d)
+	xmlBytes, err := xml.Marshal(d)
 	if err != nil {
 		log.Fatalf("marshaling failed: %v", err)
 	}
 
-	fmt.Printf("%v", string(xml))
+	fmt.Printf("%v%v", xml.Header, string(xmlBytes))
 }

pain/api.go

@@ -81,6 +81,7 @@ func (d *Document) Finalize(msgId string) error {
 	*/
 
 	//csum := 0.0
+	d.Contents.GroupHeader.MessageId = msgId
 
 	return d.Valid()
 }

pain/pain.go

@@ -6,8 +6,8 @@ import (
 )
 
 const (
+	PAIN_XMLNS     = "urn:iso:std:iso:20022:tech:xsd:pain.008.002.02"
 	PAIN_XMLNS_XSI = "http://www.w3.org/2001/XMLSchema-instance"
-	PAIN_XMLNS     = "urn:iso:std:iso:20022:tech:xsd:pain.008.001.02"
 )
 
 type Document struct {