FIX: avoid using `attr -qg` for root_hash
FIX: avoid using `attr -qg` for root_hash

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