Subject: bug#43965: 27.1; An Introduction to Programming in Emacs Lisp

From: Carlos Ysais <[email-masked]>
Date: Wed, 14 Oct 2020 18:29:31 +0800

It is in Chapter 16.11

https://www.gnu.org/software/emacs/manual/html_node/eintr/Simple-Extension.html#Simple-Extension

You can find it in the first sentence and in the documentation string of
line-to-top-of-window.

Best regards,
Carlos Ysais