[release-branch.go1.13] cmd: update golang.org/x/tools to v0.0.0-
20200615191743-
991d59a616de
This teaches vet to recognize the new formats %#b and %O on integers,
%x on float/complex. They have been supported since the 1.13 release,
but vet would warn about it.
Also update cmd/vet testdata accordingly, as was done in CL 202083.
Fixes #39287.
For #29986.
Change-Id: Ia7817ee60ae6beac32cc402c0c68afa917e4ef0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/238018
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>