code: @Nullable
    public ICommonsList <String> parseLineMulti (@Nullable final String sNextLine) throws IOException
    {
      return _parseLine (sNextLine, true);
    }
docs: Parses an incoming String and returns an array of elements. This method is
  used when the data spans multiple lines.
  
  @param sNextLine
  current line to be processed
  @return the tokenized list of elements, or <code>null</code> if nextLine is
  <code>null</code>
  @throws IOException
  if bad things happen during the read