Fix a type bug that could cause incorrect material names in output file. This was introduced in r603 (July 7); anyone who has been using mcnp2cad to prepare DAGMC inputs in the last month should verify the correctness of their material group names.
Fix a type bug that could cause incorrect material names in output file.
This was introduced in r603 (July 7); anyone who has been using mcnp2cad
to prepare DAGMC inputs in the last month should verify the correctness
of their material group names.

Thanks to Brandon for catching this.

Pshriwise/mcnp2cad,gonuke/mcnp2cad,elliottbiondo/mcnp2cad,wangguozhong/mcnp2cad,svalinn/mcnp2cad