@Override
  public void println(long l) {
    sb.append(l).append(lineSep);
  }
Create a new string writer using the specified string-builder and line separator.

@param sb the {@link StringBuilder} to use as the internal buffer
@param lineSep the line separator to use, or null to use the default from
       {@link System#lineSeparator()}.
geode-core/src/main/java/org/apache/geode/internal/shared/StringPrintWriter.java