FIX: health_check() parameter parsing
FIX: health_check() parameter parsing

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