Merge pull request GoogleCloudPlatform#1265 from acpana/acpana-patch-3

chore:lint: enable go-vet linter

Author: google-oss-prow[bot]

.golangci.yaml

@@ -34,7 +34,7 @@ linters:
     # - goimports
     # - gosec
     # - gosimple
-    # - govet
+    - govet
     # - importas
     # - ineffassign
     # - misspell
@@ -43,4 +43,4 @@ linters:
     # - typecheck
     # - unconvert
     # - unused
-    # - whitespace
+    # - whitespace