syscall: Go Build Fails on Windows With Long Paths [1.10 backport]

[gopherbot]

@bradfitz requested issue #18468 to be considered for backport to the next 1.10 minor release.

Edit: I just saw the 1.11 milestone, how can I have access to this fix before the release?

You could patch it in and recompile Go if it's urgent.

But I suppose we could also backport it to Go 1.10.x if we do another one.

@gopherbot, please backport.

[katiehockman]

This doesn't seem like a serious issue without any workarounds, so I'm going to reject this cherry pick candidate.
@bradfitz lmk if you disagree since you created the original backport request.

[bradfitz]

I don't care about Go 1.10 now that Go 1.11 is out.