Fix wrong argument name.
Fix wrong argument name.

* subversion/bindings/swig/ruby/svn/client.rb
  (Svn::Client::Context#proplist): Swap rev and peg_rev.

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