ref: 723cbaa40bf881c7cd70d39249ba6b6b285f5b04
dir: /sys/lib/python/mercurial/templates/atom/changelog.tmpl/
{header}
<!-- Changelog -->
<id>{urlbase}{url}</id>
<link rel="self" href="{urlbase}{url}atom-log"/>
<link rel="alternate" href="{urlbase}{url}"/>
<title>{repo|escape} Changelog</title>
{latestentry%feedupdated}
{entries%changelogentry}
</feed>