Fix const/non-const pointer conversion warning.
Fix const/non-const pointer conversion warning.

* subversion/tests/libsvn_ra/ra-test.c
  (tunnel_run_checkout): svn_ra_do_update3 takes a const svn_ra_reporter3_t** parameter.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1697835 13f79535-47bb-0310-9956-ffa450edef68

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