test: add missing return values

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>

examples/C/qt/add-connection-wired.cpp

@@ -72,4 +72,6 @@ int main() {
         QDBusConnection::systemBus());
 
     addConnection(interface, "__Test connection__");
+
+    return 0;
 }

libnm-util/nm-setting-template.c

@@ -47,6 +47,7 @@ static gboolean
 verify (NMSetting *setting, GSList *all_settings)
 {
 	NMSettingTemplate *self = NM_SETTING_TEMPLATE (setting);
+	return TRUE;
 }
 
 static void