Gabriel439/Haskell-Errors-Library — pull request #1 by ocharles (2012-07-15 21:00:51+00:00)
Title: Fix to work with either-3.0.2

either-3.0.2 now exports 'right' and 'left' definitions which conflict
with errors. The definition of left is identical to what is already in
errors, so I've removed that. The definition of right looks like it
conflicts, so I'm just hiding it for now.