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.
<?xml version="1.0" encoding="{encoding}"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
<head>
<link rel="icon" href="{staticurl}hgicon.png" type="image/png" />
<meta name="robots" content="index, nofollow"/>
<link rel="stylesheet" href="{staticurl}style-gitweb.css" type="text/css" />