[Catalyst] IMPORTANT: To all Catalyst::Whatever Authors, please read and ACT YAML is not an appropriate configuration format for use in perldoc because both yaml and perldoc are sensitive to white space. Therefore they interact. Even worse they interact in different ways depending on the formatter being used. CatalystのコンポーネントやプラグインのPODにはYAMLの設定例を書かない方がいいよとのこと。PODとYAMLともにwhitespace sensitiveってのが理由。