--- mysql_upgrade.c.orig	2015-07-02 09:52:08.000000000 -0700
+++ mysql_upgrade.c	2015-07-02 09:52:32.000000000 -0700
@@ -664,7 +664,7 @@
   if (!(in= my_fopen(upgrade_info_file, O_RDONLY, MYF(0))))
     return 0; /* Could not open file => not sure */
 
-  bzero(buf, sizeof(buf));
+  memset(buf, 0, sizeof(buf));
   if (!fgets(buf, sizeof(buf), in))
   {
     /* Ignore, will be detected by strncmp() below */