Follow-up to r1025595, fix broken Windows build.
Follow-up to r1025595, fix broken Windows build.

* subversion/tests/libsvn_wc/op-depth-test.c
  (subtest): Not so fast gcc, C89 requires an initializer list to be
   non-empty.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1025754 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion