[convert_poly.c] fixed ambiguity between # M and # MurphyE
[convert_poly.c] fixed ambiguity between # M and # MurphyE

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