lm-commentary

lm-commentary is a compiled Lisp function in `lisp-mnt.el'.

(lm-commentary &optional FILE)

Return the commentary in file FILE, or current buffer if FILE is nil.
Return the value as a string. In the file, the commentary
section starts with the tag `Commentary' or `Documentation' and
ends just before the next section. If the commentary section is
absent, return nil.