[Cooker] libcups2 provides libcups1 but not versioned

[Christiaan Welvaart]

libcups2 now provides: libcups1
but:
   libpng3 conflicts: libcups1 < 1.1.12-3mdk

I think the provides should be versioned. Somehow I got cups installed,
but rpm itself complains about it (when running rpm -Vav --nofiles):
  Unsatisfied dependencies for libpng3-1.2.5-6mdk: libcups1 < 1.1.12-3mdk


    Christiaan