Following up on r39749, pass the right baton to the cancel function.
Following up on r39749, pass the right baton to the cancel function.

* subversion/libsvn_wc/diff.c
  (directory_elements_diff, report_wc_directory_as_added):
    Pass cancel baton instead of callback baton.

Found by: rdonch

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