 attribute of the last merged manifest will be preserved.
      <em>Since Ant 1.8.0</em>.
      <br/>unless you also set flattenAttributes to true this may
      result in manifests containing multiple Class-Path attributes
      which violates the manifest specification.</td>
    <td align="center" valign="top">No, default is false</td>
  </tr>
  <tr>
    <td valign="top">flattenAttributes</td>
    <td valign="top">Whether to merge attributes occuring more than
      once in a section (this can only happen