[gegl] buffer: fix #includes in gegl-buffer-swap.c

[Ell <ell src gnome org>]

commit d76cd5cafa12c810d59b5a2bc2f40a02887f9d37
Author: Ell <ell_se yahoo com>
Date:   Sun Jan 6 08:19:24 2019 -0500

    buffer: fix #includes in gegl-buffer-swap.c

 gegl/buffer/gegl-buffer-swap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gegl/buffer/gegl-buffer-swap.c b/gegl/buffer/gegl-buffer-swap.c
index 6f0b29e10..dcb29b04e 100644
--- a/gegl/buffer/gegl-buffer-swap.c
+++ b/gegl/buffer/gegl-buffer-swap.c
@@ -16,8 +16,11 @@
 
 #include "config.h"
 
+#include <stdlib.h>
 #include <string.h>
 
+#include <glib/gstdio.h>
+
 #include <sys/types.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
@@ -31,8 +34,6 @@
 #include <signal.h>
 #endif
 
-#include <glib/gstdio.h>
-
 #include "gegl-buffer-config.h"
 #include "gegl-buffer-swap.h"
 #include "gegl-buffer-swap-private.h"