Merge pull request #3548 from apostasie/lint-fixes

Lint fixes

Author: AkihiroSuda

pkg/mountutil/mountutil_test.go

@@ -34,4 +34,5 @@ func (mv *MockVolumeStore) CreateWithoutLock(name string, labels []string) (*nat
 	return &native.Volume{Name: "test_volume", Mountpoint: "/test/volume"}, nil
 }
 
+//nolint:unused
 var mockVolumeStore = &MockVolumeStore{}

pkg/netutil/netutil.go

@@ -627,6 +627,7 @@ func structToMap(in interface{}) (map[string]interface{}, error) {
 }
 
 // ParseMTU parses the mtu option
+// nolint:unused
 func parseMTU(mtu string) (int, error) {
 	if mtu == "" {
 		return 0, nil // default

pkg/testutil/testutil_freebsd.go

@@ -32,6 +32,7 @@ const (
 var (
 	AlpineImage      = mirrorOf("alpine:3.13")
 	NginxAlpineImage = mirrorOf("nginx:1.19-alpine")
+	GolangImage      = mirrorOf("golang:1.18")
 )
 
 func mirrorOf(s string) string {