mercurial/templates/rss/branches.tmpl

keyword: use `set_clean` instead of `normal`

This is the newer, more semantic API.

Differential Revision: https://phab.mercurial-scm.org/D11153

{header}
    <title>{repo|escape}: branches</title>
    <description>{repo|escape} branch history</description>
    {entries%branchentry}
  </channel>
</rss>