fix: make test fails due to golint changes!

Makefile

@@ -10,7 +10,7 @@ terraboard: main.go $(DEPS)
 	strip $@
 
 lint:
-	@ go get -v github.com/golang/lint/golint
+	@ go get -v golang.org/x/lint/golint
 	@for file in $$(git ls-files '*.go' | grep -v '_workspace/'); do \
 		export output="$$(golint $${file} | grep -v 'type name will be used as docker.DockerInfo')"; \
 		[ -n "$${output}" ] && echo "$${output}" && export status=1; \
@@ -21,7 +21,7 @@ vet: main.go
 	go vet $<
 
 imports: main.go
-	goimports -d $<
+	go get golang.org/x/tools/cmd/goimports && goimports -d $<
 
 test: lint vet imports
 	GO111MODULE=on go test -v ./...

db/db.go

@@ -447,8 +447,8 @@ func (db *Database) ListAttributeKeys(resourceType string) (results []string, er
 	return
 }
 
-// Copied and adapted from github.com/hashicorp/terraform/command/jsonstate/state.go
 // DefaultVersion returns the detault VersionID for a given State path
+// Copied and adapted from github.com/hashicorp/terraform/command/jsonstate/state.go
 func (db *Database) DefaultVersion(path string) (version string, err error) {
 	sqlQuery := "SELECT versions.version_id FROM" +
 		" (SELECT states.path, max(states.serial) as mx FROM states GROUP BY states.path) t" +

go.mod

@@ -18,6 +18,9 @@ require (
 	github.com/sirupsen/logrus v1.2.0
 	github.com/zclconf/go-cty v1.1.0 // indirect
 	golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586 // indirect
+	golang.org/x/lint v0.0.0-20190930215403-16217165b5de // indirect
 	golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7 // indirect
 	golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456 // indirect
+	golang.org/x/tools v0.0.0-20191025174333-e96d959c4788 // indirect
+	gopkg.in/yaml.v2 v2.2.2
 )