patch applied (ghc): MERGED: installPackage needs to treat $httptopdir the same as $topdir

[Ian Lynagh]

Sat Nov  3 11:02:59 PDT 2007  Ian Lynagh <igloo at earth.li>
  * MERGED: installPackage needs to treat $httptopdir the same as $topdir
  Sun Oct 28 06:45:34 PDT 2007  Ian Lynagh <igloo at earth.li>

    M ./libraries/installPackage.hs +2