[tlbuild] 2016 final (let's hope) TL builds

[Akira Kakuto]

Hi All,

> It just had to happen, didn't it? I have yesterday checked-in a one-line 
> change to upstream xetex.[1]
>
> I'm not aware of any problems this is currently causing (it's a 
> potential use of an uninitialized value, so results could depend on 
> compiler behavior, etc), so in itself I don't think it's a reason to 
> call for rebuilds.
>
> But if -- and only if -- there's a need to rebuild for some other 
> reason, I think it'd be good to include this as well.

xetex.web in TeX Live is synced with the upstream (r41030).
However, as Jonathan says, it is not needed to rebuild, if
xetex is already built for a relevant platform.

Best,
Akira