Don't use deprecated method.
Don't use deprecated method.

* subversion/bindings/swig/ruby/svn/info.rb
  (Svn::Info#get_prop_diff): Use Svn::Core::Property.diff2 instead
  of Svn::Core.prop_diffs because Svn::Core.prop_diffs is deprecated.

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