Discard logs created during tests

- Make sure output is being set to discard for logrus to reduce clutter in the console

pkg/transformers/storage_diffs/maker/vat/vat_suite_test.go

@@ -1,6 +1,8 @@
 package vat_test
 
 import (
+	"github.com/sirupsen/logrus"
+	"io/ioutil"
 	"testing"
 
 	. "github.com/onsi/ginkgo"
@@ -11,3 +13,7 @@ func TestVat(t *testing.T) {
 	RegisterFailHandler(Fail)
 	RunSpecs(t, "Vat Suite")
 }
+
+var _ = BeforeSuite(func() {
+	logrus.SetOutput(ioutil.Discard)
+})