[retro-gtk] retro-cairo-display: Add a missing blank line

[Adrien Plazas <aplazas src gnome org>]

commit 950ffd2285a27428ac54af695d6cae02ab781e52
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Feb 22 18:40:29 2020 +0500

    retro-cairo-display: Add a missing blank line

 retro-gtk/retro-cairo-display.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/retro-gtk/retro-cairo-display.c b/retro-gtk/retro-cairo-display.c
index a110b1a..ffaf26f 100644
--- a/retro-gtk/retro-cairo-display.c
+++ b/retro-gtk/retro-cairo-display.c
@@ -137,6 +137,7 @@ retro_cairo_display_draw (GtkWidget *widget,
 
   return TRUE;
 }
+
 static void
 retro_cairo_display_finalize (GObject *object)
 {