* subversion/libsvn_client/diff.c   Update many doc strings and an error message, following r1171713 which revved svn_client_diff5().
* subversion/libsvn_client/diff.c
  Update many doc strings and an error message, following r1171713 which revved svn_client_diff5().

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