miniupnpd: forgot syntax for a second there

src/etc/inc/plugins.inc.d/miniupnpd.inc

@@ -73,6 +73,11 @@ function miniupnpd_stop()
 }
 
 function miniupnpd_configure()
+{
+    return array('miniupnpd_configure_do');
+}
+
+function miniupnpd_configure_do()
 {
     global $config;