ref: 8c9d28f4f8ab0305689f9f1f95e137e2f20e375c
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>