patch applied (packages/Cabal): Rearrange the PathTemplateEnv stuff and export more pieces

[Ian Lynagh]

Sun Jun  7 15:47:21 PDT 2009  Duncan Coutts <duncan at haskell.org>
  * Rearrange the PathTemplateEnv stuff and export more pieces

    M ./Distribution/Simple/InstallDirs.hs -39 +58

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20090607224721-adfee-02141d5ed80383dd5eafa37de26dbb98f6dee611.gz