patch applied (packages/Cabal): Simplify and generalise installDirsTemplateEnv

[Ian Lynagh]

Sun Jul  5 13:54:11 PDT 2009  Duncan Coutts <duncan at haskell.org>
  * Simplify and generalise installDirsTemplateEnv 
  Take a set of templates rather than file paths.

    M ./Distribution/Simple/InstallDirs.hs -13 +9

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20090705205411-adfee-531acb0895600d52821d54dff3a0a8c854e6406e.gz