Get the full path of the file containing a checksum of a CIB-file with the name of the CIB

def _get_cibfile_cksum(cibname):
    '''
    Get the full path of the file containing a checksum of a CIB-file with the name of the CIB
    '''
    cibfile_cksum = '{0}.cksum'.format(_get_cibfile(cibname))
    log.trace('cibfile_cksum: %s', cibfile_cksum)
    return cibfile_cksum