Strip pacman epoch before comparing with upstream

        # looking into db for package name

        db, pkg = pacman.find_pkg(name, allowed_repos)

        if pkg is not None:

            v = pkg.version.rsplit("-")[0]

            logging.debug("pacman version in %s: %s" % (db.name, v))

            return v

            epoch, pkgver, pkgrel = re.match("^(?:(\d+)\:)?([^-:]*)(?:-(\d+))?",

                pkg.version).groups()

            logging.debug("pacman version in %s: %s" % (db.name, pkgver))

            return pkgver

        raise VersionNotFound("No pacman package found")

    @staticmethod