[SDL] Some keys cancel each other with1.2.10(notthetypicalkeyboard bug)

[Alex Volkov]

James Haley wrote:
> I hope that the shift/alt + arrows issue doesn't return, because it
> makes it a wee bit difficult to run or strafe in a first person shooter
game

This is not exactly on topic, and I do see your point, but... The days of
Duke3d are over! ;)
Strafe modifiers are pretty pointless with modern Forward/Backward/Strafe
Left/Strafe Right + Mouse layouts.

-Alex.