friendica-github/view/templates/diaspora_comment.tpl

<XML>
  <post>
    <comment>
      <guid>{{$guid}}</guid>
      <parent_guid>{{$parent_guid}}</parent_guid>
      <author_signature>{{$authorsig}}</author_signature>
      <text>{{$body}}</text>
      <diaspora_handle>{{$handle}}</diaspora_handle>
    </comment>
  </post>
</XML>