Update: The Featureless Make no longer needs to verify format of the -d/--define.

Update: The Featureless Make no longer needs to verify format of the -d/--define.

At some point the automatic prepended of the "-D" went away.
That change failed to include removing the word validity check on this parameter.

Removing this allows -d/--define to work but also puts the burden of using valid parameters onto the user.