Changed wording of email based on link options.

Author: theriftlab

resources/views/emails/login-link.blade.php

@@ -1,7 +1,11 @@
 @component('mail::message')
 # {{ config('app.name') }} Secure Login
 
-Click the button below to securely sign in. This can only be used once and will expire after {{ config('mfa.link_timeout') }} minutes if unused.
+Click the button below to securely sign in. This link
+@if (config('mfa.link_single_use'))
+    can only be used once and
+@endif
+will expire after {{ config('mfa.link_timeout') }} minutes if unused.
 
 @component('mail::button', ['url' => $user->mfaCode->url])
 Sign In