bundlerepo: fix closing and docstring of getremotechanges
I did not in fact implement what I documented about closing of the
original repo. And there was a bit of leftover from an older version
of the API.
{header}
<title>{repo|escape}: {file|escape} history</title>
<description>{file|escape} revision history</description>
{entries%filelogentry}
</channel>
</rss>