message: util: fix ascii table terminating early
diff: @@ -111,7 +111,7 @@ NWNX_EXPORT ArgumentStack GetAsciiTableString(ArgumentStack&&)
  if (table[0] == 0)
  {
  table[0] = 1; // Can't pass NULL or it will terminate the string
  - for (size_t i = 1; i < 0xFF; i++)
  + for (size_t i = 1; i <= 0xFF; i++)
  table[i] = i;
  }
  