Ensure vmware file rewriting occurs as the user on shutdown
Ensure vmware file rewriting occurs as the user on shutdown

VMwareType::Shutdown() can be called from the destructor, at which
point the gahp is in condor priv now. Switch to user priv when
attempting to read/write the VM image files.

htcondor/htcondor,neurodebian/htcondor,djw8605/htcondor,mambelli/osg-bosco-marco,djw8605/condor,djw8605/condor,djw8605/htcondor,djw8605/condor,neurodebian/htcondor,djw8605/condor,neurodebian/htcondor,clalancette/condor-dcloud,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,zhangzhehust/htcondor,mambelli/osg-bosco-marco,bbockelm/condor-network-accounting,zhangzhehust/htcondor,mambelli/osg-bosco-marco,htcondor/htcondor,djw8605/condor,djw8605/htcondor,bbockelm/condor-network-accounting,djw8605/condor,neurodebian/htcondor,zhangzhehust/htcondor,bbockelm/condor-network-accounting,djw8605/htcondor,zhangzhehust/htcondor,bbockelm/condor-network-accounting,bbockelm/condor-network-accounting,clalancette/condor-dcloud,zhangzhehust/htcondor,neurodebian/htcondor,mambelli/osg-bosco-marco,djw8605/htcondor,djw8605/htcondor,bbockelm/condor-network-accounting,zhangzhehust/htcondor,mambelli/osg-bosco-marco,djw8605/condor,zhangzhehust/htcondor,neurodebian/htcondor,bbockelm/condor-network-accounting,neurodebian/htcondor,htcondor/htcondor,neurodebian/htcondor,zhangzhehust/htcondor,djw8605/htcondor,djw8605/htcondor,mambelli/osg-bosco-marco,djw8605/htcondor,djw8605/condor,bbockelm/condor-network-accounting,htcondor/htcondor,clalancette/condor-dcloud,clalancette/condor-dcloud,neurodebian/htcondor,clalancette/condor-dcloud,clalancette/condor-dcloud,zhangzhehust/htcondor,htcondor/htcondor,mambelli/osg-bosco-marco,clalancette/condor-dcloud,mambelli/osg-bosco-marco