Merge pull request #1034 from testwill/close_file

fix: close resolv.conf

plugins/ipam/host-local/dns.go

@@ -28,6 +28,7 @@ func parseResolvConf(filename string) (*types.DNS, error) {
 	if err != nil {
 		return nil, err
 	}
+	defer fp.Close()
 
 	dns := types.DNS{}
 	scanner := bufio.NewScanner(fp)