* Update to latest x/tools (2020/01/19).
Fixes#893
* Initialize vet analyzers as unexportd global vars.
Fixes#915
* Support testing Go 1.14beta1.
* ci: reset go.mod and go.sum before generated diff check
* Update to latest x/tools (2020/02/04)
Co-authored-by: Aleksandr Razumov <ar@gortc.io>
A recent change was introduced in goimports improving how it sort and
format imports in https://go-review.googlesource.com/c/tools/+/116795
This commit updates the vendored version of the golang.org/x/tools
repository to include these changes.