[gtk+] Fix a typo

[Matthias Clasen <matthiasc src gnome org>]

commit 2e7db0d6621b7bc0a7aab8fdd68c367b7a7c1a6e
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Apr 21 18:27:43 2017 -0400

    Fix a typo

 gdk/wayland/gdkwindow-wayland.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/wayland/gdkwindow-wayland.c b/gdk/wayland/gdkwindow-wayland.c
index 17fb720..d33de9b 100644
--- a/gdk/wayland/gdkwindow-wayland.c
+++ b/gdk/wayland/gdkwindow-wayland.c
@@ -2258,7 +2258,7 @@ should_map_as_subsurface (GdkWindow *window)
       if (impl_parent->mapped)
         return TRUE;
       else
-        g_warning ("Couldn't map window %p as susburface because its parent is not mapped.",
+        g_warning ("Couldn't map window %p as subsurface because its parent is not mapped.",
                    window);
 
     }