Revert "HTCONDOR-1113 Don't set rpath on test binaries on macOS."
Revert "HTCONDOR-1113 Don't set rpath on test binaries on macOS."

This reverts commit 3d52720c57a22555b496122f803bfb2fad97e798.

It turns out the batlab builds require the test binaries to have
relative library paths, since the build and test are done at different
times in different directories.

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor