Ensure we return NULL on failure in x509_proxy_read(). #3563
Ensure we return NULL on failure in x509_proxy_read(). #3563

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