syncthing on NetBSD i386

[Matthew Widup <widupmm%proton.me@localhost>]

syncthing in pkgsrc does not build on i386, and possibly other ports besides amd64 and arm64.

I found that this is due to gopsutil looking unnecessarily for NetBSD code that uses data unique to different architectures.  At least, the amd64 code works in i386; and I suspect universally.

I am very unfamiliar with go.  I managed to make a localpatch which makes i386 work but probably breaks amd64 and arm64.  

If someone who does understand go could either make a proper patch, or, communicate to the gopsutil developers how to avert this problem; it would be much appreciated.

Thanks
Matt