code: private static void openLog(String outFile, String rootName)
              throws Exception {
          s_rootName = rootName;
          s_log = new PrintStream(new FileOutputStream(outFile), true, "UTF-8");
          s_log.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
          s_log.println("<" + s_rootName + ">");
      }
docs: <p>
  Initializes the log file for writing.
  </p>
  
  @param outFile -
  The absolute file path of the log file.
  @param rootName -
  The name of the root element for the xml log file.
  @throws Exception -
  If any type of error occurs in trying to open the log file for
  writing.