[gtk+/popover-menu: 15/17] style nit

[Matthias Clasen <matthiasc src gnome org>]

commit 0d619569897fdc35787cf807830e9b93ae74af8b
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Oct 26 11:27:46 2014 -0400

    style nit

 gtk/gtkmodelbutton.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkmodelbutton.c b/gtk/gtkmodelbutton.c
index 81dac71..9127c2a 100644
--- a/gtk/gtkmodelbutton.c
+++ b/gtk/gtkmodelbutton.c
@@ -764,7 +764,7 @@ gtk_model_button_clicked (GtkButton *button)
       GtkWidget *stack;
 
       stack = gtk_widget_get_ancestor (GTK_WIDGET (button), GTK_TYPE_STACK);
-      if (stack)
+      if (stack != NULL)
         gtk_stack_set_visible_child_name (GTK_STACK (stack), model_button->menu_name);
     }
   else if (model_button->role == GTK_BUTTON_ROLE_NORMAL)