Use the proper streamy function to read the pristine contents, and thereby fix a bungled commit in r898406.
Use the proper streamy function to read the pristine contents, and thereby fix a
bungled commit in r898406.

* subversion/libsvn_wc/questions.c
  (svn_wc__internal_text_modified_p): Use svn_wc__get_pristine_contents() to
    fetch the pristine contents for the requested path.

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