We missed a config option rename.
We missed a config option rename.

* subversion/libsvn_subr/io.c (svn_io_run_diff3): Look for "diff-cmd",
not "diff_cmd" when resolving the parameter for --diff-program.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@844652 13f79535-47bb-0310-9956-ffa450edef68

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