[gnome-control-center] network: Add missing warning message about error

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 072d5daf5c626eb9727cdb7391492edeb101cadf
Author: Robert Ancell <robert ancell canonical com>
Date:   Fri Sep 13 14:17:20 2019 +1200

    network: Add missing warning message about error

 panels/network/connection-editor/ce-page.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/panels/network/connection-editor/ce-page.c b/panels/network/connection-editor/ce-page.c
index d9aaeef2d..f65c9d40f 100644
--- a/panels/network/connection-editor/ce-page.c
+++ b/panels/network/connection-editor/ce-page.c
@@ -303,6 +303,7 @@ ce_page_complete_init (CEPage      *page,
                                          setting_name,
                                          secrets,
                                          &update_error)) {
+               g_warning ("Couldn't update secrets: %s", update_error->message);
                g_error_free (update_error);
                /* Success */
                emit_initialized (page, NULL);