Updating server dependancies. (#7816)

vendor/github.com/miekg/dns/clientconfig.go

@@ -2,6 +2,7 @@ package dns
 
 import (
 	"bufio"
+	"io"
 	"os"
 	"strconv"
 	"strings"
@@ -25,8 +26,13 @@ func ClientConfigFromFile(resolvconf string) (*ClientConfig, error) {
 		return nil, err
 	}
 	defer file.Close()
+	return ClientConfigFromReader(file)
+}
+
+// ClientConfigFromReader works like ClientConfigFromFile but takes an io.Reader as argument
+func ClientConfigFromReader(resolvconf io.Reader) (*ClientConfig, error) {
 	c := new(ClientConfig)
-	scanner := bufio.NewScanner(file)
+	scanner := bufio.NewScanner(resolvconf)
 	c.Servers = make([]string, 0)
 	c.Search = make([]string, 0)
 	c.Port = "53"