[Bug 36216] Hearthstone fails to start, says the game timed out

https://bugs.winehq.org/show_bug.cgi?id=36216

[e-mail] changed:

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--- Comment #18 from [e-mail] ---
(In reply to Johannes Dewender from comment #17)
> Created attachment 48575 [details]
> patch reverting commit 2005be6dc92c0943ede01525cecad88f8e83c9c7
>
> I can confirm the problem and the fix for current git (704d169; 1.7.19 + 47
> commits).
>
> Without the patch I get that error message starting hearthstone (from
> battle.net app, login there works).
> Applying the patch (reverting commit 2005be6) lets me play hearthstone fine
> again. (played a full match)
>
> I attach the patch that can be applied to revert the "offending" commit.
> (For people not having/using a git checkout)

How do I download and apply this patch? I've never had to do this before.
Thanks for making the patch.