Replace random mutation but *un*-natural selection with intelligent design.
Replace random mutation but *un*-natural selection with intelligent design.

* subversion/libsvn_client/ra.c
  (compare_segments): Fix the casting and comparison in this function,
    which has somehow managed to survive testing for months only because 
    pointer values happened to line up in just the right favorable way.
    This was causing merge_tests.py 66 to fail for me, and only me, and
    only recently, and only using the BDB backend.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion