patch applied (ghc): Stop generating redundant parens in 'deriving' code

[Simon Peyton Jones]

Thu Jul 23 05:59:03 PDT 2009  simonpj at microsoft.com
  * Stop generating redundant parens in 'deriving' code
  Ignore-this: 6fc82df9648a82bcf7bf6fdfa9b4dad3
  
  This makes the code printed by -ddump-deriv look prettier
  

    M ./compiler/hsSyn/HsPat.lhs -15 +43
    M ./compiler/hsSyn/HsUtils.lhs -3 +2

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20090723125903-1287e-31ee2b004ccbbfb6df2094d7ad97098832d458cd.gz