adapt to current overlayfs (workdir requirement)
adapt to current overlayfs (workdir requirement)

alhowaidi/cvmfsNDN,Gangbiao/cvmfs,cvmfs/cvmfs,djw8605/cvmfs,Gangbiao/cvmfs,Moliholy/cvmfs,trshaffer/cvmfs,djw8605/cvmfs,reneme/cvmfs,cvmfs/cvmfs,reneme/cvmfs,DrDaveD/cvmfs,DrDaveD/cvmfs,alhowaidi/cvmfsNDN,cvmfs/cvmfs,Gangbiao/cvmfs,alhowaidi/cvmfsNDN,DrDaveD/cvmfs,Moliholy/cvmfs,trshaffer/cvmfs,Moliholy/cvmfs,Moliholy/cvmfs,Gangbiao/cvmfs,trshaffer/cvmfs,reneme/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,DrDaveD/cvmfs,reneme/cvmfs,DrDaveD/cvmfs,alhowaidi/cvmfsNDN,trshaffer/cvmfs,Moliholy/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,alhowaidi/cvmfsNDN,reneme/cvmfs,djw8605/cvmfs,djw8605/cvmfs,djw8605/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs