ref: d1604b5f9ce1d64919a8b8313e1db22ebd8d5213
dir: /sys/lib/python/mercurial/templates/rss/filelog.tmpl/
{header}
<title>{repo|escape}: {file|escape} history</title>
<description>{file|escape} revision history</description>
{entries%filelogentry}
</channel>
</rss>