[gtk] vulkan: Add missing break statement

[Benjamin Otte <otte src gnome org>]

commit 3f9b8f25d853a6efb990c840c59dbe34719d0bcb
Author: Benjamin Otte <otte redhat com>
Date:   Sat Jan 26 14:28:48 2019 +0100

    vulkan: Add missing break statement

 gsk/vulkan/gskvulkanclip.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gsk/vulkan/gskvulkanclip.c b/gsk/vulkan/gskvulkanclip.c
index d927d88f13..83e3b63867 100644
--- a/gsk/vulkan/gskvulkanclip.c
+++ b/gsk/vulkan/gskvulkanclip.c
@@ -72,6 +72,7 @@ gsk_vulkan_clip_intersect_rect (GskVulkanClip         *dest,
            */
           return FALSE;
         }
+      break;
 
     default:
       g_assert_not_reached ();