code: private Document getWhitespaceManipulatedDocument(Document originalDoc) {
  	return XMLUnit.getIgnoreWhitespace()
  	    ? XMLUnit.getWhitespaceStrippedDocument(originalDoc)
  	    : originalDoc;
      }
docs: If {@link XMLUnit#getIgnoreWhitespace whitespace is ignored} in
  differences then manipulate the content to strip the redundant
  whitespace
  @param originalDoc a document making up one half of this difference
  @return the original document with redundant whitespace removed if
  differences ignore whitespace