release 3.0.0 MailMerger.java Println

[dishakya]

Hi,
I was using docx4j ver 3.0.0 and when i used below command:
WordprocessingMLPackage output = org.docx4j.model.fields.merge.MailMerger.getConsolidatedResultCrude(wordMLPackage, data);
it printed out the xml associated with the wordMLPackage object.
I downloaded the code and saw:

System.out.println("@@" + XmlUtils.marshaltoString(target.getMainDocumentPart().getJaxbElement(), true, true) );
was not commented out.
How do i notify to developer to fix it in release ?
I compiled my version and using it.

[dishakya]

used nightly build its fine too.
I went through the bug posting steps.