texinfo-incorporate-descriptions

texinfo-incorporate-descriptions is a compiled Lisp function in `texnfo-upd.el'.

(texinfo-incorporate-descriptions NEW-MENU-LIST)

Copy the old menu line descriptions that exist to the new menu.

Point must be at beginning of old menu.

If the node-name of the new menu is found in the old menu, insert the
old description into the new entry.

For this function, the new menu is a list made up of lists of dotted
pairs in which the first element of the pair is the node name and the
second element the description. The new menu is changed destructively.
The old menu is the menu as it appears in the Texinfo file.