Revert "Omit edition numbers and dates in manuals"

This reverts commit 2f42832895.
Editions of Emacs manuals must be coordinated with the FSF
publishing staff, as they appear on the printed books.

doc/emacs/emacs.texi

@@ -3,10 +3,28 @@
 @setfilename ../../info/emacs.info
 @settitle GNU Emacs Manual
 @include docstyle.texi
+
+@c The edition number appears in more than one place in this file
+@c I don't really know what it means...
+@c For example, it has said "Sixteenth" since sometime in the Emacs 22
+@c series, all through 23, and into 24.  So it is not very useful IMO,
+@c and offers nothing that EMACSVER does not.  I guess it relates
+@c mainly to the published book sold by the FSF.  Hence no longer
+@c bother including it except iftex.  Really, I think it should not be
+@c here at all (since anyone can make a pdf version), but should just
+@c be something added by the FSF during the publishing process.
+@c Also, the lispref uses a float (3.0), whereas this uses an ordinal,
+@c so the format is not even consistent.
+@set EDITION   Seventeenth
 @include emacsver.texi
 
 @copying
+@iftex
+This is the @value{EDITION} edition of the @cite{GNU Emacs Manual},@*
+@end iftex
+@ifnottex
 This is the @cite{GNU Emacs Manual},
+@end ifnottex
 updated for Emacs version @value{EMACSVER}.
 
 Copyright @copyright{} 1985--1987, 1993--2019 Free Software Foundation, Inc.
@@ -64,7 +82,7 @@ developing GNU and promoting software freedom.''
 @sp 6
 @center @titlefont{GNU Emacs Manual}
 @sp 4
-@center Updated for Emacs Version @value{EMACSVER}
+@center @value{EDITION} Edition, Updated for Emacs Version @value{EMACSVER}.
 @sp 5
 @center Richard Stallman et al.
 @page

doc/lispintro/emacs-lisp-intro.texi

@@ -63,6 +63,10 @@
 \global\hbadness=6666 % don't worry about not-too-underfull boxes
 @end tex
 
+@c These refer to the printed book sold by the FSF.
+@set edition-number 3.10
+@set update-date 28 October 2009
+
 @c For next or subsequent edition:
 @c   create function using with-output-to-temp-buffer
 @c   create a major mode, with keymaps
@@ -102,6 +106,9 @@
 This is @cite{An Introduction to Programming in Emacs Lisp}, for
 people who are not programmers.
 @sp 1
+@iftex
+Edition @value{edition-number}, @value{update-date}
+@end iftex
 @ifnottex
 Distributed with Emacs version @value{EMACSVER}.
 @end ifnottex

doc/lispref/elisp.texi

@@ -52,7 +52,12 @@
 @end ifset
 @end tex
 
+
+@c Version of the manual and of Emacs.
+@c (See comments for EDITION in emacs.texi)
+@set VERSION  3.1
 @include emacsver.texi
+@set DATE October 2014
 
 @c in general, keep the following line commented out, unless doing a
 @c copy of this manual that will be published.  The manual should go
@@ -86,7 +91,12 @@
 @c @syncodeindex tp fn
 
 @copying
-This is the @cite{GNU Emacs Lisp Reference Manual},
+@iftex
+This is edition @value{VERSION} of the @cite{GNU Emacs Lisp Reference Manual},@*
+@end iftex
+@ifnottex
+This is the @cite{GNU Emacs Lisp Reference Manual}
+@end ifnottex
 corresponding to Emacs version @value{EMACSVER}.
 
 Copyright @copyright{} 1990--1996, 1998--2019 Free Software Foundation, Inc.
@@ -117,6 +127,7 @@ developing GNU and promoting software freedom.''
 @subtitle @value{voltitle}
 @end ifset
 @subtitle For Emacs Version @value{EMACSVER}
+@subtitle Revision @value{VERSION}, @value{DATE}
 
 @author by Bil Lewis, Dan LaLiberte, Richard Stallman,
 @author the GNU Manual Group, et al.