Subscribe by Email: send full post

in the following discussion in the Community, there were instructions as to how to change the code to send full post rather than an excerpt.

https://premium.wpmudev.org/forums/topic/how-to-get-full-text-delivery-in-subscribe-to-email

In the file subscribe-by-email.php, I can't find the code to replace.

Will you send instructions for modifing the code so that the full post will be sent in the email?

Thank you.