bug#9233: Small error in Elisp manual

[Juanma Barranquero]

Emacs Lisp Reference, "37.15 Network Servers" says:

    The server's process buffer value is never used directly by Emacs,
    but it is passed to the log function, which can log connections by
    inserting text there.

but in fact, the log function gets SERVER, CONNECTION (both processes)
and MESSAGE (a string).

It  should instead say something like: "The server's process buffer
value is never used directly, but the log function can retrieve it and
use it to log connections by inserting text there."

    Juanma