Haddock 2.x and --hoogle

[Neil Mitchell]

As a side note, about 2 lines after:

    let mockFlags
          | isVersion2 = []
          | otherwise  = ["-D__HADDOCK__"]

Could be written more compactly as:

   let mockFlags = ["-D__HADDOCK__" | not isVersion2]

I love list comprehensions :-)

Thanks

Neil