store: change `_walk` return to `(filename, (type, size))`
If we are to group file per revlog, having the filename as the "main key" will be useful. This change will make the following changes clearer.
{header}
<title>{repo|escape}: searching for {query|escape}</title>
</head>
<body>
<div class="buttons">
<a href="{url|urlescape}log{sessionvars%urlparameter}">changelog</a>
<a href="{url|urlescape}shortlog{sessionvars%urlparameter}">shortlog</a>
<a href="{url|urlescape}graph{sessionvars%urlparameter}">graph</a>
<a href="{url|urlescape}tags{sessionvars%urlparameter}">tags</a>
<a href="{url|urlescape}branches{sessionvars%urlparameter}">branches</a>
<a href="{url|urlescape}file{sessionvars%urlparameter}">files</a>
{archives%archiveentry}
<a href="{url|urlescape}help{sessionvars%urlparameter}">help</a>
</div>
<h2>searching for {query|escape}</h2>
<form>
{sessionvars%hiddenformentry}
<p>
search:
<input name="rev" type="text" width="30" value="{query|escape}">
</p>
</form>
{entries%changelogentry}
<form>
{sessionvars%hiddenformentry}
<p>
search:
<input name="rev" type="text" width="30" value="{query|escape}">
</p>
</form>
{footer}