revlog: use context manager for data file lifetime in checksize
This is clearer, safer and more modern.
{header}
<title>Mercurial repositories index</title>
</head>
<body>
<div class="container">
<div class="menu">
<a href="{logourl}">
<img src="{staticurl|urlescape}{logoimg}" width=75 height=90 border=0 alt="mercurial" /></a>
</div>
<div class="main">
<h2 class="breadcrumb"><a href="/">Mercurial</a> {pathdef%breadcrumb}</h2>
<table class="bigtable">
<thead>
<tr>
<th><a href="?sort={sort_name}">Name</a></th>
<th><a href="?sort={sort_description}">Description</a></th>
<th><a href="?sort={sort_contact}">Contact</a></th>
<th><a href="?sort={sort_lastchange}">Last modified</a></th>
<th> </th>
<th> </th>
</tr>
</thead>
<tbody class="stripes2">
{entries%indexentry}
</tbody>
</table>
</div>
</div>
{footer}