$OpenBSD: patch-image_c,v 1.2 2016/02/29 23:43:49 sthen Exp $

Replace the malloc.h header with stdlib.h.

--- image.c.orig	Thu Jun 25 21:42:24 2015
+++ image.c	Thu Feb 11 11:39:25 2016
@@ -19,7 +19,7 @@
  */
 
 #include <stdio.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
 #ifdef _WIN32
