[network-manager-fortisslvpn] properties: avoid setting the trusted-cert to NULL

[Lubomir Rintel <lkundrak src gnome org>]

commit 5b47bb811da023ea192c99c97dcaf94dbb34cbd9
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Wed Sep 23 23:49:47 2015 +0200

    properties: avoid setting the trusted-cert to NULL

 properties/nm-fortisslvpn.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/properties/nm-fortisslvpn.c b/properties/nm-fortisslvpn.c
index b399e2a..3fcc281 100644
--- a/properties/nm-fortisslvpn.c
+++ b/properties/nm-fortisslvpn.c
@@ -306,8 +306,9 @@ init_plugin_ui (FortisslvpnPluginUiWidget *self, NMConnection *connection, GErro
        if (s_vpn) {
                priv->trusted_cert = g_strdup (nm_setting_vpn_get_data_item (s_vpn,
                                                                             
NM_FORTISSLVPN_KEY_TRUSTED_CERT));
-               if (priv->trusted_cert && strlen (priv->trusted_cert))
-                       gtk_entry_set_text (GTK_ENTRY (widget), priv->trusted_cert);
+               if (!priv->trusted_cert)
+                       priv->trusted_cert = g_strdup ("");
+               gtk_entry_set_text (GTK_ENTRY (widget), priv->trusted_cert);
        }
 
        widget = GTK_WIDGET (gtk_builder_get_object (priv->builder, "show_passwords_checkbutton"));