ref: e6634fbd0c3e091d6db26c4290d6b31e1e7a36e7
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>