[gnome-online-accounts] utils: Silence -Wswitch-enum

[Debarshi Ray <debarshir src gnome org>]

commit 51bb26a7520d400a1c07315f71d634b85f5824dd
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Nov 2 14:43:28 2017 +0100

    utils: Silence -Wswitch-enum

 src/goabackend/goautils.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/goabackend/goautils.c b/src/goabackend/goautils.c
index f384d0c..5029e07 100644
--- a/src/goabackend/goautils.c
+++ b/src/goabackend/goautils.c
@@ -925,6 +925,8 @@ goa_utils_set_error_ssl (GError **err, GTlsCertificateFlags flags)
       error_msg = _("The certificate’s algorithm is considered insecure.");
       break;
 
+    case G_TLS_CERTIFICATE_GENERIC_ERROR:
+    case G_TLS_CERTIFICATE_VALIDATE_ALL:
     default:
       error_msg = _("Invalid certificate.");
       break;