bug#13856: Emacs Lisp Intro v 24.2.1 - Mismatch between sample code and explanation

[Carlos]

Greetings,

This bug is for emacs lisp intro manual version 24.2.1. In section
8.4, "Digression into C", the following statement appears:

   * The first part is the name given to the function in Lisp,
     `delete-and-extract-region'.

The code sample that this refers to actually shows the text
'buffer-substring-no-properties'. There is a similar flaw with the
subsequent bullet-point, which states:

   * The second part is the name of the function in C,
     `Fdelete_and_extract_region'.  By convention, it starts with `F'.
     Since C does not use hyphens in names, underscores are used
     instead.

I recently enjoyed reading through the "Emacs Lisp Intro" and this was
the only glaring error I noticed.

-- Carlos