[web/json] an empty rset is just fine for ejsonexport
The ejsonexport view can just return an empty list for an empty rset.
Closes #4005518
# -*- 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"""