Return $sid value with successful signup

Regarding the "signup_sign_up_user" function

Currently the function returns a FALSE value if a user is already signed up
It would be great if the $sid value could be returned with a successful signup.

There would only be one line of code to add...

  return $sid;

At the bottom of the function, this

    $node->signup_total++;
    if ($node->signup_close_signup_limit) {
      _signup_check_limit($node, 'total');
    }
  }
  else {
    drupal_access_denied();
  }
}

Would become this

    $node->signup_total++;
    if ($node->signup_close_signup_limit) {
      _signup_check_limit($node, 'total');
    }
    return $sid;
  }
  else {
    drupal_access_denied();
  }
}

I don't believe any current call to the function would be impacted.

Why would this be helpful?

Currently I can call the function from my own module as outlined in the documentatation:

  signup_sign_up_user($signup_form);

If I set the functions return value to a variable:

  $sid = signup_sign_up_user($signup_form);

I can check the $sid for FALSE to see if the signup was successful, and that is nice.

I have an additional dataset that I need to use that is keyed on the $sid value, so currently I need to do another query to get that $sid value.
If the "signup_sign_up_user" function returned the value it would elimate the additional query and provide a clearer method for determining success.

Then I could call the function such as...

  $sid = signup_sign_up_user($signup_form);
  if ($sid > 0) {
    // success
    db_query('INSERT blah blah blah', $sid);
  }

And by the way, thanks for this module, it is great!