This has bitten me on QNX. I was porting UQM for fun, and it was failing when entering a dialogue, Turns out, on QNX you can't pass short int into variadic fun

This has bitten me on QNX. I was porting UQM for fun, and it was failing when entering a dialogue, Turns out, on QNX you can't pass short int into variadic function, which is expected behavior as far as C is concerned (you should only pass int or full size types), but it worked on every other arch so it took me a while.