test/rss/test_content.rb, test/rss/test_maker_content.rb, test/rss/rss-testcase.rb (RSS::TestCase): supported content:encoded with RSS 2.0. Suggested by Sam Lown. Thanks. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13805 b2dd03c8-39d4-4d8f-98ff-823fe69b080e