rubygem-rubyforge-2.0.4-1.el6 was built in Koji, but it was never pushed to Bodhi as an update. The package installs fine on my EL6 test system. Please submit it to Bodhi.
rubygem-rubyforge-2.0.4-1.el6 has been submitted as an update for Fedora EPEL 6. https://admin.fedoraproject.org/updates/rubygem-rubyforge-2.0.4-1.el6
Package rubygem-rubyforge-2.0.4-1.el6: * should fix your issue, * was pushed to the Fedora EPEL 6 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=epel-testing rubygem-rubyforge-2.0.4-1.el6' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-EPEL-2012-13397/rubygem-rubyforge-2.0.4-1.el6 then log in and leave karma (feedback).
rubygem-rubyforge-2.0.4-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.