patch applied (cabal): -Wall clean fixes

[Ian Lynagh]

Wed Jan 10 04:55:23 PST 2007  Ian Lynagh <igloo at earth.li>
  * -Wall clean fixes
  
  This patch is sponsored by Hac 07.
  Have you hacked a lambda today?

    M ./Distribution/Compat/FilePath.hs -16 +16
    M ./Distribution/InstalledPackageInfo.hs -5 +8
    M ./Distribution/PreProcess/Unlit.hs -12 +14
    M ./Distribution/Program.hs -3
    M ./Distribution/Setup.hs -3 +4
    M ./Distribution/Simple.hs -49 +48
    M ./Distribution/Simple/JHC.hs -5 +6
    M ./Distribution/Simple/LocalBuildInfo.hs -6 +8
    M ./Distribution/Simple/Utils.hs -4 +4