haskeline: Needs a bounds upper bounds fix

[erikd]

Have raised a PR: haskell/haskeline#188

Have emailed the maintainer.

[phadej]

haskeline is bundled with GHC. ping @bgamari

[erikd]

I was using an SRP for haskeline:

source-repository-package
  type: git
  location: https://github.com/erikd/haskeline
  tag: 6758c914603b072aba26d2bc6ed59d0919fbd516

But now that is no longer necessary. The package on Hackage has not changed, there is no allow-newer stanza mentioning haskeline, it is still being used in my project, the GHC has not changed, but everything compiles fine.

I am confused.

[hsenag]

@erikd I just double-checked and I definitely still need allow-newer: haskeline:base to get a build plan.