Add in a patch to make busybox use the normal pwd.h and grp.h

functions.  Add in simple implementations of these functions,
which can, optionally, be used instead of the system versions.
 -Erik

chmod_chown_chgrp.c

@@ -29,8 +29,6 @@
 #include "messages.c"
 
 #include <stdio.h>
-#include <grp.h>
-#include <pwd.h>
 
 
 static long uid = -1;