[release-branch.go1.9] cmd/dist: skip moved GOROOT on Go's Windows builders when not sharding tests
Change-Id: I0bcae339624e7d61037d9ea0885b7bd07491bbb6
Reviewed-on: https://go-review.googlesource.com/51430
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit
4833e920c1d7f6b23458e6ff3c73951fcf754219)
Reviewed-on: https://go-review.googlesource.com/51450
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>