all: gofmt all

Change-Id: I1d42c8d784440a0b7e40b4f0b8da54be0fb338a6
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/370054
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Florian Zenker <floriank@google.com>
diff --git a/integration_test.go b/integration_test.go
index dfcfd10..078a1ff 100644
--- a/integration_test.go
+++ b/integration_test.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build ignore
 // +build ignore
 
 package main