Ryan Scott authored Jun 13, 2019 and Herbert Valerio Riedel committed Jun 17, 2019

`happy-1.19.11` adapts to `MonadFail`-related changes in
`base-4.13.*`, but alas, its custom `Setup` script must also be
tweaked to adapt to the removal of `rawSystemProgramConf` in
`Cabal-3.0.*`.