Yields:
            str: .hgsubs line for this repository

def hgsub_report(self):
        """
        Yields:
            str: .hgsubs line for this repository
        """
        if self.relpath == '.':
            return
        yield "%s = [%s]%s" % (
            self.fpath.lstrip('./'),
            self.label,
            self.remote_url)