    # File lib/chef/provider/package/rubygems.rb, line 444
            def uninstall_via_gem_command(name, version)
              if version
                shell_out!("#{gem_binary_path} uninstall #{name} -q -x -I -v \"#{version}\"#{opts}", :env=>nil)
              else
                shell_out!("#{gem_binary_path} uninstall #{name} -q -x -I -a#{opts}", :env=>nil)
              end
            end