ually references the expected sequence.
            This is intended to help catch cases when the sequence file has
            changed but the index has not been updated.</td>
            <td>The index file is assumed to be correct for the sequence file.</td>
          </tr>
          <tr>
            <td class="popt">-s</td><td><span class="pdat">suffix</span></td>
            <td>Put each sequence in its own file named with the sequence
              identifier with ".<span class="pdat">suffix</span>" ap