switch to using is_updating instead of is_snapshotting
switch to using is_updating instead of is_snapshotting

Gangbiao/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,djw8605/cvmfs,cvmfs/cvmfs,DrDaveD/cvmfs,Gangbiao/cvmfs,Gangbiao/cvmfs,trshaffer/cvmfs,Gangbiao/cvmfs,trshaffer/cvmfs,djw8605/cvmfs,trshaffer/cvmfs,cvmfs/cvmfs,djw8605/cvmfs,DrDaveD/cvmfs,djw8605/cvmfs,DrDaveD/cvmfs,trshaffer/cvmfs,DrDaveD/cvmfs,cvmfs/cvmfs,djw8605/cvmfs