ref: d5d371ad4e026b5d9c2321f0d22853d96e14ed30
dir: /sys/lib/python/mercurial/templates/rss/changelog.tmpl/
{header}
<title>{repo|escape} Changelog</title>
<description>{repo|escape} Changelog</description>
{entries%changelogentry}
</channel>
</rss>