[service] allow repo_stats for users
It's used by the siteinfo view, which is available to managers and
users. This change prevents a crash in that view.
# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s schema"""