When running diff, determine the depth capability *before* using it.
When running diff, determine the depth capability *before* using it.

* subversion/libsvn_client/diff.c
  (diff_repos_wc): Initialize server_supports_depth before using it.

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