reformat usage output

[andy5995]

I don't know when I'll get around to finishing reformatting the help usage output. Anyone want to finish it?

https://github.com/ZetaGlest/zetaglest-source/pull/222

[raphaelts3]

Hello @andy5995 I love online games and C++, could I help you with that?

[andy5995]

hi @raphaelts3 yes, you may. :) I merged in the changes shown in that PR, so once you pull the latest changes, you can work from that. You can submit a PR as you normally would, following our pretty standard contributing guidelines.