[gtk+] levelbar: fix parameter confusion

[Cosimo Cecchi <cosimoc src gnome org>]

commit 183bcb41ecae92f73b07c4eca6f120e177f20735
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Mon Jan 4 17:55:26 2016 -0800

    levelbar: fix parameter confusion
    
    We're always interested in the minimum size.

 gtk/gtklevelbar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtklevelbar.c b/gtk/gtklevelbar.c
index 61323aa..aad1876 100644
--- a/gtk/gtklevelbar.c
+++ b/gtk/gtklevelbar.c
@@ -268,7 +268,7 @@ gtk_level_bar_get_min_block_size (GtkLevelBar *self,
   gtk_css_gadget_get_preferred_size (self->priv->block_gadget[0],
                                      GTK_ORIENTATION_VERTICAL,
                                      -1,
-                                     NULL, block_height,
+                                     block_height, NULL,
                                      NULL, NULL);
 }