net/dns: make debian_resolvconf correctly clear DNS configs.

More of #1720. Signed-off-by: David Anderson <danderson@tailscale.com>
2021-04-20 15:51:14 -07:00
parent 3b1ab78954
commit 53213114ec
3 changed files with 33 additions and 16 deletions
@@ -234,7 +234,7 @@ func (m directManager) restoreBackup() error {
 }

 func (m directManager) SetDNS(config OSConfig) error {
-	if config.Equal(OSConfig{}) {
+	if config.IsZero() {
 		if err := m.restoreBackup(); err != nil {
 			return err
 		}