Console hangs up when trying to use -get_flags on Windows

No idea whats going on here.

I'm able to run an FSO build through the debugger with `-get_flags json_v1 > flags.txt` and the flags.txt file is populated accordingly, but when trying to do the same manuever from a command prompt or powershell, the .json object spews into the console and the flags.txt is empty.

This is a potential snag to anybody who wants to try out the new multi-joy feature, since nuKnossos hasn't been completed yet, the only way to get the correct GUID's for their joysticks is via FSO.