ref: bb1a24b22e7fea0d39af635dd28dc7f9d2ebbae6
dir: /sys/lib/python/mercurial/templates/rss/changelog.tmpl/
{header}
<title>{repo|escape} Changelog</title>
<description>{repo|escape} Changelog</description>
{entries%changelogentry}
</channel>
</rss>