[gtk+] fix the build

[Matthias Clasen <matthiasc src gnome org>]

commit 6ebd2d384b8861232b405fdddd7306c1d9b8f6c7
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Nov 7 19:56:11 2017 -0500

    fix the build

 gtk/encodesymbolic.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/encodesymbolic.c b/gtk/encodesymbolic.c
index d1cc606..81493f8 100644
--- a/gtk/encodesymbolic.c
+++ b/gtk/encodesymbolic.c
@@ -31,7 +31,7 @@
 #include <stdlib.h>
 #include <locale.h>
 
-#include "gtkpixbufutilsprivate.h"
+#include "gdkpixbufutilsprivate.h"
 
 static gchar *output_dir = NULL;