OK, here is the code from the language file that is used for the activation email:

$txt['register_activate_message'] = 'You are now registered with an account at ' . $context['forum_name'] . ', %1$s!' . "\n\n" . 'Your account\'s username is %2$s and its password is %3$s (which can be changed later.)' . "\n\n" . 'Before you can login, you first need to activate your account. To do so, please follow this link:' . "\n\n" . '%5$s' . "\n\n" . 'Should you have any problems with activation, please use the code "%4$s".' . "\n\n" . $txt[130];

The problem I'm getting is that the word "Should" is being included in the actual link in the email, therefore making the activation code wrong and not working.  What can I change in this to make the link stop before the "Should". Thanks.