Update vendoring for github.com/godbus/dbus

vendor/github.com/godbus/dbus/conn_other.go

@@ -5,23 +5,27 @@ package dbus
 import (
 	"bytes"
 	"errors"
+	"os"
 	"os/exec"
 )
 
-func sessionBusPlatform() (*Conn, error) {
+func getSessionBusPlatformAddress() (string, error) {
 	cmd := exec.Command("dbus-launch")
 	b, err := cmd.CombinedOutput()
 
 	if err != nil {
-		return nil, err
+		return "", err
 	}
 
 	i := bytes.IndexByte(b, '=')
 	j := bytes.IndexByte(b, '\n')
 
 	if i == -1 || j == -1 {
-		return nil, errors.New("dbus: couldn't determine address of session bus")
+		return "", errors.New("dbus: couldn't determine address of session bus")
 	}
 
-	return Dial(string(b[i+1 : j]))
+	env, addr := string(b[0:i]), string(b[i+1:j])
+	os.Setenv(env, addr)
+
+	return addr, nil
 }