haskell-jobs: cherry-pick minor improvements

Change-Id: I09d3f065a52e1a4e00532b052bfd4eb24a38ce44
4 files changed
tree: 5cd100a5f2a5f42e6c5351dd3c89892d6a2ccb17
  1. .gitreview
  2. README
  3. playbooks/
  4. roles/
  5. zuul.d/