subrepo: make update -C clean the working directory for git subrepos
This makes 'hg update --clean' behave the same way for all three kinds
of subrepositories [hg, svn, git]. Before git subrepos did not take
the clean parameter into account, but just updated to the given
revision and merged uncommitted changes into that.
<table class="logEntry parity{parity}">
<tr>
<th class="age">{date|age}:</th>
<th class="firstline"><a href="{url}rev/{node|short}{sessionvars%urlparameter}">{desc|strip|firstline|escape|nonempty}</a></th>
</tr>
<tr>
<th class="revision">revision {filerev}:</td>
<td class="node">
<a href="{url}file/{node|short}/{file|urlescape}{sessionvars%urlparameter}">{node|short}</a>
<a href="{url}diff/{node|short}/{file|urlescape}{sessionvars%urlparameter}">(diff)</a>
<a href="{url}annotate/{node|short}/{file|urlescape}{sessionvars%urlparameter}">(annotate)</a>
</td>
</tr>
{rename%filelogrename}
<tr>
<th class="author">author:</th>
<td class="author">{author|obfuscate}</td>
</tr>
<tr>
<th class="date">date:</th>
<td class="date">{date|date}</td>
</tr>
</table>