Fix formatting in extractall example outputs
I noticed that these doctests lost some formatting in a refactor. It's a little surprising the tests were still passing, presumably doctests is configured to ignore leading whitespace?
thanks @TheNeuralBit i don't think doctests care about the actual whitespace match (though its possible we also runing these specific ones). I also modified the output and confirmed that it failed when running `./ci/code_checks.sh doctests` so I think you're right that its ignoring whitespace