ref: 1c30bd451e1813f1cf9f9db4d7c1a4f3f95d1e37
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>