New recaptcha error code (apparently): timeout-or-duplicate

Thanks, @hass, but that's not what's going on. My network and server is fine; the problem is simply that the Google API is returning an error -- "timeout-or-duplicate" -- that is not expected or handled by the Drupal code in recaptcha_captcha_validation(), at around line 158:

  if ($resp->isSuccess()) {
    // Verified!
    return TRUE;
  }
  else {
    // Error code reference, https://developers.google.com/recaptcha/docs/verify
    $error_codes = array(
      'missing-input-secret' => t('The secret parameter is missing.'),
      'invalid-input-secret' => t('The secret parameter is invalid or malformed.'),
      'missing-input-response' => t('The response parameter is missing.'),
      'invalid-input-response' => t('The response parameter is invalid or malformed.'),
      'invalid-json' => t('The json response is invalid or malformed.'),
      'unknown' => t('Unknown error.'),
    );

All that's needed -- I think -- is to add another entry in $error_codes for 'timeout-or-duplicate'. It seems like an easy fix, but I though I'd leave it to the module maintainers to figure out what they wanted to use for the message translation, and to make sure that I wasn't missing anything else in the module.

ps: I think what was causing the message in the first place was a spider or spammer hitting the page containing the captcha and never following up (hence the "timeout" aspect of the message), but that's kinda neither here nor there...