code: private void log(final String level,
                     final String message,
                     final Throwable t) {
      StringBuffer buf = new StringBuffer();
  
      long millis  = System.currentTimeMillis();
      buf.append(millis - startTime);
  
      buf.append(" [");
      buf.append(Thread.currentThread().getName());
      buf.append("] ");
  
      buf.append(level);
      buf.append(" ");
  
      buf.append(loggerName);
      buf.append(" - ");
  
      buf.append(message);
  
      buf.append(LINE_SEPARATOR);
  
      System.out.print(buf.toString());
      if (t != null) {
        t.printStackTrace(System.out);
      }
      System.out.flush();
    }
docs: This is our internal implementation for logging regular (non-parameterized)
  log messages.
  
  @param level level
  @param message message
  @param t throwable