Run game with command line argsument, required video device

[pavanvo]

Some times we running game on servers without video device, and headless mode megaglest --headless-server-mode=vps works fine

But if you want to ./megaglest --list-techtrees this return Couldn't initialize SDL: No available video device

I test a lot of commands everything but megaglest --version doesn't work

I think It's should work without video device