Fix TmpDir test on Mac OS X.
Fix TmpDir test on Mac OS X.

/tmp is a symlink to /private/tmp on Mac, so don't fail if we cd into
the first and wind up in the latter.

neurodebian/htcondor,htcondor/htcondor,neurodebian/htcondor,djw8605/htcondor,zhangzhehust/htcondor,neurodebian/htcondor,djw8605/htcondor,djw8605/htcondor,djw8605/htcondor,neurodebian/htcondor,zhangzhehust/htcondor,zhangzhehust/htcondor,htcondor/htcondor,zhangzhehust/htcondor,neurodebian/htcondor,htcondor/htcondor,djw8605/htcondor,djw8605/htcondor,djw8605/htcondor,neurodebian/htcondor,zhangzhehust/htcondor,djw8605/htcondor,htcondor/htcondor,djw8605/htcondor,htcondor/htcondor,zhangzhehust/htcondor,neurodebian/htcondor,neurodebian/htcondor,neurodebian/htcondor,htcondor/htcondor,zhangzhehust/htcondor,htcondor/htcondor,zhangzhehust/htcondor,htcondor/htcondor,zhangzhehust/htcondor