Followup to r1436580: Add a const to silence a compiler warning.
Followup to r1436580: Add a const to silence a compiler warning.

* subversion/libsvn_client/patch.c
  (get_hunk_info): Constify a variable.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1436622 13f79535-47bb-0310-9956-ffa450edef68

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