[gnome-control-center] region: Fix language section not being marked insensitive

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

commit d4340c4efcf9d75c2036dea2c8a59f0938bc62f3
Author: Robert Ancell <robert ancell canonical com>
Date:   Mon Sep 10 13:58:43 2018 +1200

    region: Fix language section not being marked insensitive
    
    This is due to the widget not being extracted from region.ui and was introduced
    in 5c418b898318dbd8504fcdbe800381244bb54e9c.

 panels/region/cc-region-panel.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/panels/region/cc-region-panel.c b/panels/region/cc-region-panel.c
index 2b7122307..0023e3ab2 100644
--- a/panels/region/cc-region-panel.c
+++ b/panels/region/cc-region-panel.c
@@ -1654,6 +1654,7 @@ cc_region_panel_class_init (CcRegionPanelClass * klass)
 
         gtk_widget_class_bind_template_child (widget_class, CcRegionPanel, language_row);
         gtk_widget_class_bind_template_child (widget_class, CcRegionPanel, language_label);
+        gtk_widget_class_bind_template_child (widget_class, CcRegionPanel, language_section);
         gtk_widget_class_bind_template_child (widget_class, CcRegionPanel, formats_row);
         gtk_widget_class_bind_template_child (widget_class, CcRegionPanel, formats_label);
         gtk_widget_class_bind_template_child (widget_class, CcRegionPanel, restart_revealer);