patch applied (ghc-6.6/packages/filepath): Change the contract and implementation of makeRelative - fixes bug #1278, and removes the use of .. paths as these have symlink issues

[Ian Lynagh]

Tue Apr 17 09:17:48 PDT 2007  Neil Mitchell <http://www.cs.york.ac.uk/~ndm/>
  * Change the contract and implementation of makeRelative - fixes bug #1278, and removes the use of .. paths as these have symlink issues

    M ./System/FilePath/Internal.hs -14 +19