[0.9.12] hash sanitize, drop values that are emtpy hashes
[0.9.12] hash sanitize, drop values that are emtpy hashes

sensu/sensu-chef,sh88/chef-repo,klamontagne/sensu-chef,sh88/chef-repo,cwjohnston/sensu-chef,sensu/sensu-chef,klamontagne/sensu-chef,cwjohnston/sensu-chef