fix ineffectual assignment in dns.go
@@ -178,7 +178,7 @@ func (d *Discovery) refresh(ctx context.Context, name string, ch chan<- []*targe
}
for _, record := range response.Answer {
- target := model.LabelValue("")
+ var target model.LabelValue
switch addr := record.(type) {
case *dns.SRV:
// Remove the final dot from rooted DNS names to make them look more usual.
