hgweb: partially revert 4ec58b157265
The change from self.repo.ui.diffopts() to ui.diffopts() causes a
traceback when the diff of a changeset should be displayed in the
web interface. Revert to self.repo.ui.diffopts() for now.
#!/bin/shop=`basename $0 | sed -e 's/^git-//'`exec hgit $op "$@"