patch applied (ghc): Mac installer: make Uninstaller a bit more robust

[chak at cse.unsw.edu.au]

Mon Feb 11 01:11:19 PST 2008  Manuel M T Chakravarty <chak at cse.unsw.edu.au>
  * Mac installer: make Uninstaller a bit more robust

    M ./distrib/MacOS/installer-scripts/Uninstaller -9 +9
    M ./distrib/MacOS/installer-scripts/create-links -5 +11