show there is more.</li>
        <li><b>DF_JUSTIFY_LEFT</b>: Left-justify text. (default)</li>
        <li><b>DF_JUSTIFY_RIGHT</b>: Right-justify text.</li>
        <li><b>DF_JUSTIFY_CENTER</b>: Center text.</li>
        <li><b>DF_JUSTIFY</b>: Justify text to both margins.</li>
        <li><b>DF_INCLUDE_AC</b>: Include the "before" (A) and "after" (C)
          widths of the beginning and end characters on each line,
          respectively.</li>
        <li><b>DF_SET_WIDTH</b>: Round <tt>width</tt> up to th