WineD3D: Spelling fixes.

[Jonathan Ernst]

On jeu, 2008-01-10 at 10:53 -0600, Austin English wrote:
> -     * which is essentially an input, is the destiantion register
> because it is the first
> -     * param. According to the msdn, this must be register r5, but
> let's keep it more flexible
> +     * which is essentially an input, is the destination register
> because it is the first
> +     * paramater. According to the msdn, this must be register r5,
> but let's keep it more flexible

paramEter ?