Change the behavior of the fudge_factor in Jmax computation.
Change the behavior of the fudge_factor in Jmax computation.

mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs