[Bug 43315] Steam fails to start [After update Thu, 06 Jul 2017]

https://bugs.winehq.org/show_bug.cgi?id=43315

--- Comment #21 from ross  ---
(In reply to Alistair Leslie-Hughes from comment #20)
> Fixed by 
> http://source.winehq.org/git/wine.git/?a=commit;
> h=32334704e882eb225b4738a34d46c6407af12514

I'm not sure what that even means. How do I replace it? Not a tech guy, so if
you could instruct me on how to change it on a mac so, PlayOnMac will work,
thanks !