Preserve permissions for template expanded files.
Preserve permissions for template expanded files.

erantapaa/haskell-platform,ardumont/haskell-platform,gbaz/haskell-platform,bgamari/haskell-platform,thomie/haskell-platform,erantapaa/haskell-platform,gbaz/haskell-platform,ardumont/haskell-platform,erantapaa/haskell-platform,bgamari/haskell-platform