Use a struct as baton to avoid constness warnings in an editor v2 helper function.
Use a struct as baton to avoid constness warnings in an
editor v2 helper function.

* subversion/libsvn_delta/compat.c
  (open_delta_target): Use change as baton.
  (ev2_apply_textdelta): Update caller.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1665546 13f79535-47bb-0310-9956-ffa450edef68

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