Fix revprop access code on systems where apr_off_t (mainly 32 bit machines)  is different from apr_size_t. Use apr_off_t consistently for the size and offset values stored in the revprop packs.
Fix revprop access code on systems where apr_off_t (mainly 32 bit machines) 
is different from apr_size_t. Use apr_off_t consistently for the size and
offset values stored in the revprop packs.

* subversion/libsvn_fs_fs/fs_fs.c
  (parse_packed_revprops, parse_packed_revprops, serialize_revprops_header,
   repack_revprops, write_packed_revprop): use apr_off_t consistently

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