Write out hgrc properly.
Previously, we simply appended to the hgrc file, which meant that it
ended up containing multiple "paths" sections. Now, we only modify
"paths.default".
#header#
<title>#repo|escape#: searching for #query|escape#</title>
</head>
<body>
<div class="buttons">
<a href="?cmd=changelog;rev=#rev#">changelog</a>
<a href="?cmd=tags">tags</a>
<a href="?cmd=manifest;manifest=#manifest#;path=/">manifest</a>
</div>
<h2>searching for #query|escape#</h2>
<form>
search:
<input type="hidden" name="cmd" value="changelog">
<input name="rev" type="text" width="30" value="#query|escape#">
</form>
#entries#
<form>
search:
<input type="hidden" name="cmd" value="changelog">
<input name="rev" type="text" width="30">
</form>
#footer#