templates/filelog-rss.tmpl

[extendedchangelog] add extra metadata in the changelog entry

- add a third item in the date field that holds arbitrary
  key:value items

#header#
    <title>#repo|escape#: #file|escape# history</title>
    <description>#file|escape# revision history</description>
    #entries%filelogentry#
  </channel>
</rss>