When docpad not found layout, docpad print layout's name it looking for.
When docpad not found layout, docpad print layout's name it looking for.

If I have no layout required, I cannot know what layout I need.
so I make docpad print layout'name it looking for

 `Could not find the layout: undefined` => `Could not find the layout: my-layout`

unframework/docpad,unframework/docpad