edknrc produces infinity results when spectrum file is used but SPEC IOUTSP is missing in the input file

[mchamberland]

When using a spectrum file in edknrc, if the SPEC IOUTSP input is missing from the input file, the code outputs some infinity numbers in the results.

Although the command line output does indicate an error that the SPEC IOUTSP is missing, the code should probably refuse to run instead of running and producing incorrect results.

simple_electron_Ru_infinity.txt