See how Boundary would look with gofumpt applied (#853)

* See how Boundary would look with https://github.com/mvdan/gofumpt applied

Results of running `gofumpt -w -s .`

* Update tools file and Makefile for gofumpt

Co-authored-by: Jeff Mitchell <jeffrey.mitchell@gmail.com>

api/hostsets/host_set.gen.go

@@ -58,8 +58,10 @@ func (n HostSetReadResult) GetResponseMap() map[string]interface{} {
 	return n.response.Map
 }
 
-type HostSetCreateResult = HostSetReadResult
-type HostSetUpdateResult = HostSetReadResult
+type (
+	HostSetCreateResult = HostSetReadResult
+	HostSetUpdateResult = HostSetReadResult
+)
 
 type HostSetDeleteResult struct {
 	response *api.Response