Kill trailing whitespace in recently touched files

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Normalize GHC Trac URLs

Update several old

  http://hackage.haskell.org/trac/ghc

URLs references to the current

  http://ghc.haskell.org/trac/ghc

URLs.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>