[gtk+] Box: Don't unnecessarily repeat a function call

[Daniel Boles <dboles src gnome org>]

commit 5d101740313107fbd946f1034b6671bcbecb4517
Author: Daniel Boles <dboles src gnome org>
Date:   Sun Dec 25 17:43:06 2016 +0000

    Box: Don't unnecessarily repeat a function call
    
    The spacing was already saved in a variable just above.

 gtk/gtkbox.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkbox.c b/gtk/gtkbox.c
index d19ef7d..67a4a41 100644
--- a/gtk/gtkbox.c
+++ b/gtk/gtkbox.c
@@ -554,9 +554,9 @@ gtk_box_size_allocate_no_center (GtkWidget           *widget,
        * minimum sizes for children that are not going to fill
        */
       if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
-       size = allocation->width - (nvis_children - 1) * get_spacing (box);
+       size = allocation->width - (nvis_children - 1) * spacing;
       else
-       size = allocation->height - (nvis_children - 1) * get_spacing (box);
+       size = allocation->height - (nvis_children - 1) * spacing;
 
       extra = size / nvis_children;
       n_extra_widgets = size % nvis_children;