[telepathy-account-widgets/next] fixup! update for latest tp-glib API changes

[Guillaume Desmottes <gdesmott src gnome org>]

commit a602693a92e84e984caf92f6fad8d61789499798
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Tue Feb 25 12:00:53 2014 +0100

    fixup! update for latest tp-glib API changes

 tp-account-widgets/tpaw-account-settings.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/tp-account-widgets/tpaw-account-settings.c b/tp-account-widgets/tpaw-account-settings.c
index 60326a4..2f5077a 100644
--- a/tp-account-widgets/tpaw-account-settings.c
+++ b/tp-account-widgets/tpaw-account-settings.c
@@ -1553,8 +1553,7 @@ tpaw_account_settings_parameter_is_valid (
 
           account_params = tp_account_dup_parameters (settings->priv->account);
 
-          v = g_variant_lookup_value (account_params, param,
-              G_VARIANT_TYPE_VARIANT);
+          v = g_variant_lookup_value (account_params, param, NULL);
           g_variant_unref (account_params);
 
           if (v != NULL)