test: update test fixtures

test: update test fixtures

Seeing as I finally got local bin/golden and bin/accept working, as
described here:

https://twitter.com/wincent/status/1300865628534910976
https://github.com/simonmar/happy/pull/170

    git clone https://github.com/simonmar/happy.git
    cd happy
    git hub get 170 # custom command, pulls down that PR
    make sdist && cabal install

    cd ..
    bin/golden
    bin/accept