kevinconway/rpmvenv_manylinux_issue

https://github.com/kevinconway/rpmvenv/issues/48

Reproduces kevinconway/rpmvenv#48

Run: ``shell docker run -it --rm -v `pwd:/opt/test centos:7

cd /opt/test yum install -y python python-setuptools rpm-build easy_install pip pip install virtualenv rpmvenv

rpmvenv --verbose rpm.json ```