patch applied (cabal): Install license file into the right place

[Duncan Coutts]

Mon Jun  9 11:58:40 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Install license file into the right place
  even if the license file was kept in a subdir of the src tree.
  The canonical example was: license-file: debian/copyright
  It was being installed into $docdir/debian/ and failing since
  that dir did not exist. It's now installed into just $docdir.

    M ./Distribution/Simple/Install.hs -2 +3

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20080609185840-adfee-0d2ddc4627eaf77e4c015095b9f7e883c107318a.gz