sysutils/loki: Fix build

Checksum of one of the many required go modules changed, compared
its content to what was on distcache to verify the change is harmless:

diff consul-1.5.1/vendor/k8s.io/client-go/pkg/version/base.go ...
...
< gitVersion   string = "v0.0.0-master+40cec98468b"
---
> gitVersion   string = "v0.0.0-master+40cec98468b8"

Approved by: portmgr (blanket)