[vala/0.40] pango: Update to 1.42.3

[Rico Tzschichholz <ricotz src gnome org>]

commit ddce1f34d24256beb4325b7ec2bdf053f9add8ed
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Sep 17 16:20:46 2018 +0200

    pango: Update to 1.42.3

 vapi/pango.vapi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/vapi/pango.vapi b/vapi/pango.vapi
index ae322a253..0c7d9f70b 100644
--- a/vapi/pango.vapi
+++ b/vapi/pango.vapi
@@ -491,7 +491,7 @@ namespace Pango {
                [Version (since = "1.20")]
                public unowned Pango.Layout get_layout ();
                public void get_layout_extents (out Pango.Rectangle ink_rect, out Pango.Rectangle 
logical_rect);
-               public Pango.LayoutLine get_line ();
+               public unowned Pango.LayoutLine get_line ();
                public void get_line_extents (out Pango.Rectangle ink_rect, out Pango.Rectangle logical_rect);
                [Version (since = "1.16")]
                public unowned Pango.LayoutLine get_line_readonly ();