On the log-addressing branch: Switch packing code to using the new revision file API.
On the log-addressing branch:
Switch packing code to using the new revision file API.

* subversion/libsvn_fs_fs/pack.c
  (pack_range,
   append_revision): use revision file struct instead of plain APR files


git-svn-id: ffff46c2915712c3f53fa52a6edff6337513e032@1532021 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion