ref: 2334c2bd4f8be1551f7b84d770d97ea4c087d2a3
dir: /sys/lib/python/mercurial/templates/rss/changelog.tmpl/
{header}
<title>{repo|escape} Changelog</title>
<description>{repo|escape} Changelog</description>
{entries%changelogentry}
</channel>
</rss>