ref: 2d4a2c5c2065a32b6b5bd6a0e887af1574a8dfec
dir: /sys/lib/python/mercurial/templates/rss/filelogentry.tmpl/
<item>
<title>{desc|strip|firstline|strip|escape}</title>
<link>{urlbase}{url}log{{node|short}}/{file|urlescape}</link>
<description><![CDATA[{desc|strip|escape|addbreaks|nonempty}]]></description>
<author>{author|obfuscate}</author>
<pubDate>{date|rfc822date}</pubDate>
</item>