[gtk/kjellahl/gtkprintbackendlpr] gtkprintbackendlpr.c: Add #include "gtkprivate.h"

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 9db812ea7f28fc70130489386db4fb5e3ebb27b1
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Mon Sep 26 18:38:06 2022 +0200

    gtkprintbackendlpr.c: Add #include "gtkprivate.h"
    
    Necessary after GTK_NOTE was replaced by GTK_DEBUG.
    GTK_DEBUG is defined in gtk/gtkprivate.h. GTK_NOTE was defined
    in gtk/gtkdebug.h.

 modules/printbackends/gtkprintbackendlpr.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/modules/printbackends/gtkprintbackendlpr.c b/modules/printbackends/gtkprintbackendlpr.c
index f3029e64ae..b4f711632f 100644
--- a/modules/printbackends/gtkprintbackendlpr.c
+++ b/modules/printbackends/gtkprintbackendlpr.c
@@ -33,6 +33,7 @@
 
 #include <gtk/gtk.h>
 #include "gtkprinterprivate.h"
+#include "gtkprivate.h"
 
 #include "gtkprintbackendlpr.h"