code: public void appendXMLToMasterStyle(final XMLUtil util, final Appendable appendable)
              throws IOException {
          appendable.append("<style:master-page");
          util.appendEAttribute(appendable, "style:name", this.name);
          util.appendEAttribute(appendable, "style:page-layout-name", this.layoutName);
          appendable.append("><style:header>");
          this.header.appendXMLToMasterStyle(util, appendable);
          appendable.append("</style:header>");
          appendable.append("<style:header-left");
          util.appendAttribute(appendable, "style:display", false);
          appendable.append("/>");
          appendable.append("<style:footer>");
          this.footer.appendXMLToMasterStyle(util, appendable);
          appendable.append("</style:footer>");
          appendable.append("<style:footer-left");
          util.appendAttribute(appendable, "style:display", false);
          appendable.append("/>");
          appendable.append("</style:master-page>");
      }
docs: Return the master-style informations for this PageStyle.
  
  @param util       a util for XML writing
  @param appendable where to write
  @throws IOException If an I/O error occurs