message: Fixed m_cost value to bytes
diff: @@ -14,7 +14,7 @@ extern void clear_internal_memory(void *v, size_t n);
  const int8_t L = 72;
  const unsigned t_cost = 1;
  -const unsigned m_cost = 1024 * 4;
  +const unsigned m_cost = 1024 * 1024 * 4;
  const unsigned lanes = 4;
  