(svn_wc_get_update_editor): don't take dir_baton arg anymore.
(svn_wc_get_update_editor): don't take dir_baton arg anymore.

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