prompt without -f when days are greater than 30
prompt without -f when days are greater than 30

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