mercurial/templates/rss/filelog.tmpl

setup: try a non-pure version of the local Mercurial if the pure fails

Things like `zstd` can make the pure version fails.

{header}
    <title>{repo|escape}: {file|escape} history</title>
    <description>{file|escape} revision history</description>
    {entries%filelogentry}
  </channel>
</rss>