cryptorf: minor tweak

tools/cryptorf/util.c

@@ -1,5 +1,5 @@
-#include <stdio.h>
 #include "util.h"
+#include <stdio.h>
 
 void num_to_bytes(uint64_t n, size_t len, uint8_t *dst)
 {

tools/cryptorf/util.h

@@ -28,6 +28,7 @@ extern "C" {
 #endif
 
 #include <stdint.h>
+#include <stddef.h>
 
 #define AEND  "\x1b[0m"