add IUserFriendlyError adapter for violation of check constraints
This way we get back the same error messages we get from the python
check.
Related to #5154406
# -*- 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 specific hooks and operations"""