Merge from origin/emacs-27

186152ba40 Pacify gcc -Wunused-function on Ubuntu 18.04.3
4cd143aded Fix copyright years by hand
365e01cc9f Update copyright year to 2020
cd2c156163 ; * etc/NEWS: Make the description of XDG fallback more ac...

# Conflicts:
#	etc/NEWS
#	etc/refcards/ru-refcard.tex

42 files changed, 42 insertions, 42 deletions

diff --git a/lisp/mail/binhex.el b/lisp/mail/binhex.el
index 1cf50aa0678..896f82d7bcc 100644
--- a/lisp/mail/binhex.el
+++ b/lisp/mail/binhex.el
@@ -1,6 +1,6 @@
 ;;; binhex.el --- decode BinHex-encoded text  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
 ;; Keywords: binhex news
diff --git a/lisp/mail/blessmail.el b/lisp/mail/blessmail.el
index 62094bfe2d7..242714db968 100644
--- a/lisp/mail/blessmail.el
+++ b/lisp/mail/blessmail.el
@@ -1,6 +1,6 @@
 ;;; blessmail.el --- decide whether movemail needs special privileges -*- no-byte-compile: t -*-
 
-;; Copyright (C) 1994, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1994, 2001-2020 Free Software Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: internal
diff --git a/lisp/mail/emacsbug.el b/lisp/mail/emacsbug.el
index fea7619b505..7f3dc4454ab 100644
--- a/lisp/mail/emacsbug.el
+++ b/lisp/mail/emacsbug.el
@@ -1,6 +1,6 @@
 ;;; emacsbug.el --- command to report Emacs bugs to appropriate mailing list
 
-;; Copyright (C) 1985, 1994, 1997-1998, 2000-2019 Free Software
+;; Copyright (C) 1985, 1994, 1997-1998, 2000-2020 Free Software
 ;; Foundation, Inc.
 
 ;; Author: K. Shane Hartman
diff --git a/lisp/mail/flow-fill.el b/lisp/mail/flow-fill.el
index 4dbd4d7b086..af3b493a08a 100644
--- a/lisp/mail/flow-fill.el
+++ b/lisp/mail/flow-fill.el
@@ -1,6 +1,6 @@
 ;;; flow-fill.el --- interpret RFC2646 "flowed" text  -*- lexical-binding:t -*-
 
-;; Copyright (C) 2000-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2000-2020 Free Software Foundation, Inc.
 
 ;; Author: Simon Josefsson <jas@pdc.kth.se>
 ;; Keywords: mail
diff --git a/lisp/mail/footnote.el b/lisp/mail/footnote.el
index fc74122ecd2..61f7cbf9695 100644
--- a/lisp/mail/footnote.el
+++ b/lisp/mail/footnote.el
@@ -1,6 +1,6 @@
 ;;; footnote.el --- footnote support for message mode  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1997, 2000-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1997, 2000-2020 Free Software Foundation, Inc.
 
 ;; Author: Steven L Baur <steve@xemacs.org> (1997-2011)
 ;;         Boruch Baum <boruch_baum@gmx.com> (2017-)
diff --git a/lisp/mail/hashcash.el b/lisp/mail/hashcash.el
index 185a7a7441a..12cffd9bc4b 100644
--- a/lisp/mail/hashcash.el
+++ b/lisp/mail/hashcash.el
@@ -1,6 +1,6 @@
 ;;; hashcash.el --- Add hashcash payments to email  -*- lexical-binding:t -*-
 
-;; Copyright (C) 2003-2005, 2007-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2003-2005, 2007-2020 Free Software Foundation, Inc.
 
 ;; Written by: Paul Foley <mycroft@actrix.gen.nz> (1997-2002)
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/ietf-drums.el b/lisp/mail/ietf-drums.el
index 29752cb5c28..a136ccf14e7 100644
--- a/lisp/mail/ietf-drums.el
+++ b/lisp/mail/ietf-drums.el
@@ -1,6 +1,6 @@
 ;;; ietf-drums.el --- Functions for parsing RFC 2822 headers  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; This file is part of GNU Emacs.
diff --git a/lisp/mail/mail-extr.el b/lisp/mail/mail-extr.el
index c1e90c3dcb8..f1a455dce2d 100644
--- a/lisp/mail/mail-extr.el
+++ b/lisp/mail/mail-extr.el
@@ -1,6 +1,6 @@
 ;;; mail-extr.el --- extract full name and address from email header
 
-;; Copyright (C) 1991-1994, 1997, 2001-2019 Free Software Foundation,
+;; Copyright (C) 1991-1994, 1997, 2001-2020 Free Software Foundation,
 ;; Inc.
 
 ;; Author: Joe Wells <jbw@cs.bu.edu>
diff --git a/lisp/mail/mail-hist.el b/lisp/mail/mail-hist.el
index 9a2fb912afe..34bef2cfb8a 100644
--- a/lisp/mail/mail-hist.el
+++ b/lisp/mail/mail-hist.el
@@ -1,6 +1,6 @@
 ;;; mail-hist.el --- headers and message body history for outgoing mail
 
-;; Copyright (C) 1994, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1994, 2001-2020 Free Software Foundation, Inc.
 
 ;; Author: Karl Fogel <kfogel@red-bean.com>
 ;; Created: March, 1994
diff --git a/lisp/mail/mail-parse.el b/lisp/mail/mail-parse.el
index d5da9d4692a..894313633da 100644
--- a/lisp/mail/mail-parse.el
+++ b/lisp/mail/mail-parse.el
@@ -1,6 +1,6 @@
 ;;; mail-parse.el --- Interface functions for parsing mail
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; This file is part of GNU Emacs.
diff --git a/lisp/mail/mail-prsvr.el b/lisp/mail/mail-prsvr.el
index 1240033af4f..9023c00a66e 100644
--- a/lisp/mail/mail-prsvr.el
+++ b/lisp/mail/mail-prsvr.el
@@ -1,6 +1,6 @@
 ;;; mail-prsvr.el --- Interface variables for parsing mail
 
-;; Copyright (C) 1999-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1999-2020 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; This file is part of GNU Emacs.
diff --git a/lisp/mail/mail-utils.el b/lisp/mail/mail-utils.el
index 24015858b02..68b6fea0ede 100644
--- a/lisp/mail/mail-utils.el
+++ b/lisp/mail/mail-utils.el
@@ -1,6 +1,6 @@
 ;;; mail-utils.el --- utility functions used both by rmail and rnews
 
-;; Copyright (C) 1985, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 2001-2020 Free Software Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: mail, news
diff --git a/lisp/mail/mailabbrev.el b/lisp/mail/mailabbrev.el
index d59df88c688..a6a606828f9 100644
--- a/lisp/mail/mailabbrev.el
+++ b/lisp/mail/mailabbrev.el
@@ -1,6 +1,6 @@
 ;;; mailabbrev.el --- abbrev-expansion of mail aliases
 
-;; Copyright (C) 1985-1987, 1992-1993, 1996-1997, 2000-2019 Free
+;; Copyright (C) 1985-1987, 1992-1993, 1996-1997, 2000-2020 Free
 ;; Software Foundation, Inc.
 
 ;; Author: Jamie Zawinski <jwz@lucid.com; now jwz@jwz.org>
diff --git a/lisp/mail/mailalias.el b/lisp/mail/mailalias.el
index 8bb42634892..8e7aaf94937 100644
--- a/lisp/mail/mailalias.el
+++ b/lisp/mail/mailalias.el
@@ -1,6 +1,6 @@
 ;;; mailalias.el --- expand and complete mailing address aliases -*- lexical-binding: t -*-
 
-;; Copyright (C) 1985, 1987, 1995-1997, 2001-2019 Free Software
+;; Copyright (C) 1985, 1987, 1995-1997, 2001-2020 Free Software
 ;; Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/mailclient.el b/lisp/mail/mailclient.el
index 0c2594cc830..08325484677 100644
--- a/lisp/mail/mailclient.el
+++ b/lisp/mail/mailclient.el
@@ -1,6 +1,6 @@
 ;;; mailclient.el --- mail sending via system's mail client.
 
-;; Copyright (C) 2005-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2005-2020 Free Software Foundation, Inc.
 
 ;; Author: David Reitter <david.reitter@gmail.com>
 ;; Keywords: mail
diff --git a/lisp/mail/mailheader.el b/lisp/mail/mailheader.el
index 8aec1940a7e..801df100135 100644
--- a/lisp/mail/mailheader.el
+++ b/lisp/mail/mailheader.el
@@ -1,6 +1,6 @@
 ;;; mailheader.el --- mail header parsing, merging, formatting
 
-;; Copyright (C) 1996, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 2001-2020 Free Software Foundation, Inc.
 
 ;; Author: Erik Naggum <erik@naggum.no>
 ;; Keywords: tools, mail, news
diff --git a/lisp/mail/metamail.el b/lisp/mail/metamail.el
index 6f9f1899167..0e407ea060e 100644
--- a/lisp/mail/metamail.el
+++ b/lisp/mail/metamail.el
@@ -1,6 +1,6 @@
 ;;; metamail.el --- Metamail interface for GNU Emacs
 
-;; Copyright (C) 1993, 1996, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1993, 1996, 2001-2020 Free Software Foundation, Inc.
 
 ;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
 ;; Keywords: mail, news, mime, multimedia
diff --git a/lisp/mail/mspools.el b/lisp/mail/mspools.el
index b1cbd9e5497..9c0c3fe5ca9 100644
--- a/lisp/mail/mspools.el
+++ b/lisp/mail/mspools.el
@@ -1,6 +1,6 @@
 ;;; mspools.el --- show mail spools waiting to be read
 
-;; Copyright (C) 1997, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1997, 2001-2020 Free Software Foundation, Inc.
 
 ;; Author: Stephen Eglen <stephen@gnu.org>
 ;; Created: 22 Jan 1997
diff --git a/lisp/mail/qp.el b/lisp/mail/qp.el
index 803d78602e5..388c3981c97 100644
--- a/lisp/mail/qp.el
+++ b/lisp/mail/qp.el
@@ -1,6 +1,6 @@
 ;;; qp.el --- Quoted-Printable functions
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: mail, extensions
diff --git a/lisp/mail/reporter.el b/lisp/mail/reporter.el
index 10db110c70f..edfceb373f7 100644
--- a/lisp/mail/reporter.el
+++ b/lisp/mail/reporter.el
@@ -1,6 +1,6 @@
 ;;; reporter.el --- customizable bug reporting of lisp programs
 
-;; Copyright (C) 1993-1998, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1993-1998, 2001-2020 Free Software Foundation, Inc.
 
 ;; Author:          1993-1998 Barry A. Warsaw
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/rfc2045.el b/lisp/mail/rfc2045.el
index e677d03141e..7d962ea2348 100644
--- a/lisp/mail/rfc2045.el
+++ b/lisp/mail/rfc2045.el
@@ -1,6 +1,6 @@
 ;;; rfc2045.el --- Functions for decoding rfc2045 headers
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; This file is part of GNU Emacs.
diff --git a/lisp/mail/rfc2047.el b/lisp/mail/rfc2047.el
index d8511d4e394..234f319669f 100644
--- a/lisp/mail/rfc2047.el
+++ b/lisp/mail/rfc2047.el
@@ -1,6 +1,6 @@
 ;;; rfc2047.el --- functions for encoding and decoding rfc2047 messages  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;;      MORIOKA Tomohiko <morioka@jaist.ac.jp>
diff --git a/lisp/mail/rfc2231.el b/lisp/mail/rfc2231.el
index 6ddb2964e51..add099745b6 100644
--- a/lisp/mail/rfc2231.el
+++ b/lisp/mail/rfc2231.el
@@ -1,6 +1,6 @@
 ;;; rfc2231.el --- Functions for decoding rfc2231 headers  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; This file is part of GNU Emacs.
diff --git a/lisp/mail/rfc2368.el b/lisp/mail/rfc2368.el
index b658ffab587..7b38288be20 100644
--- a/lisp/mail/rfc2368.el
+++ b/lisp/mail/rfc2368.el
@@ -1,6 +1,6 @@
 ;;; rfc2368.el --- support for rfc2368
 
-;; Copyright (C) 1998, 2000-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 2000-2020 Free Software Foundation, Inc.
 
 ;; Author: Sen Nagata <sen@eccosys.com>
 ;; Keywords: mail
diff --git a/lisp/mail/rfc822.el b/lisp/mail/rfc822.el
index a53a77e47ee..f2fe1cd8166 100644
--- a/lisp/mail/rfc822.el
+++ b/lisp/mail/rfc822.el
@@ -1,6 +1,6 @@
 ;;; rfc822.el --- hairy RFC 822 (or later) parser for mail, news, etc.
 
-;; Copyright (C) 1986-1987, 1990, 2001-2019 Free Software Foundation,
+;; Copyright (C) 1986-1987, 1990, 2001-2020 Free Software Foundation,
 ;; Inc.
 
 ;; Author: Richard Mlynarik <mly@eddie.mit.edu>
diff --git a/lisp/mail/rmail-spam-filter.el b/lisp/mail/rmail-spam-filter.el
index f08c050802e..db518482591 100644
--- a/lisp/mail/rmail-spam-filter.el
+++ b/lisp/mail/rmail-spam-filter.el
@@ -1,6 +1,6 @@
 ;;; rmail-spam-filter.el --- spam filter for Rmail, the Emacs mail reader
 
-;; Copyright (C) 2002-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2002-2020 Free Software Foundation, Inc.
 ;; Keywords: email, spam, filter, rmail
 ;; Author: Eli Tziperman <eli AT deas.harvard.edu>
 ;; Package: rmail
diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 0b5f564abf4..d798ffa0516 100644
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -1,6 +1,6 @@
 ;;; rmail.el --- main code of "RMAIL" mail reader for Emacs  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1985-1988, 1993-1998, 2000-2019 Free Software
+;; Copyright (C) 1985-1988, 1993-1998, 2000-2020 Free Software
 ;; Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/rmailedit.el b/lisp/mail/rmailedit.el
index 43422ff3a41..ba6ebad082c 100644
--- a/lisp/mail/rmailedit.el
+++ b/lisp/mail/rmailedit.el
@@ -1,6 +1,6 @@
 ;;; rmailedit.el --- "RMAIL edit mode"  Edit the current message
 
-;; Copyright (C) 1985, 1994, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1994, 2001-2020 Free Software Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: mail
diff --git a/lisp/mail/rmailkwd.el b/lisp/mail/rmailkwd.el
index 9427796a065..f5115ad06c2 100644
--- a/lisp/mail/rmailkwd.el
+++ b/lisp/mail/rmailkwd.el
@@ -1,6 +1,6 @@
 ;;; rmailkwd.el --- part of the "RMAIL" mail reader for Emacs
 
-;; Copyright (C) 1985, 1988, 1994, 2001-2019 Free Software Foundation,
+;; Copyright (C) 1985, 1988, 1994, 2001-2020 Free Software Foundation,
 ;; Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/rmailmm.el b/lisp/mail/rmailmm.el
index 6106183ac04..29c6dcf40e8 100644
--- a/lisp/mail/rmailmm.el
+++ b/lisp/mail/rmailmm.el
@@ -1,6 +1,6 @@
 ;;; rmailmm.el --- MIME decoding and display stuff for RMAIL
 
-;; Copyright (C) 2006-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2006-2020 Free Software Foundation, Inc.
 
 ;; Author: Alexander Pohoyda
 ;;      Alex Schroeder
diff --git a/lisp/mail/rmailmsc.el b/lisp/mail/rmailmsc.el
index ba0c2ae77c7..204f33db542 100644
--- a/lisp/mail/rmailmsc.el
+++ b/lisp/mail/rmailmsc.el
@@ -1,6 +1,6 @@
 ;;; rmailmsc.el --- miscellaneous support functions for the RMAIL mail reader
 
-;; Copyright (C) 1985, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 2001-2020 Free Software Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: mail
diff --git a/lisp/mail/rmailout.el b/lisp/mail/rmailout.el
index 12d37615d6b..49531eab91e 100644
--- a/lisp/mail/rmailout.el
+++ b/lisp/mail/rmailout.el
@@ -1,6 +1,6 @@
 ;;; rmailout.el --- "RMAIL" mail reader for Emacs: output message to a file
 
-;; Copyright (C) 1985, 1987, 1993-1994, 2001-2019 Free Software
+;; Copyright (C) 1985, 1987, 1993-1994, 2001-2020 Free Software
 ;; Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/rmailsort.el b/lisp/mail/rmailsort.el
index 4a701038ac8..c2749be9d07 100644
--- a/lisp/mail/rmailsort.el
+++ b/lisp/mail/rmailsort.el
@@ -1,6 +1,6 @@
 ;;; rmailsort.el --- Rmail: sort messages
 
-;; Copyright (C) 1990, 1993-1994, 2001-2019 Free Software Foundation,
+;; Copyright (C) 1990, 1993-1994, 2001-2020 Free Software Foundation,
 ;; Inc.
 
 ;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
diff --git a/lisp/mail/rmailsum.el b/lisp/mail/rmailsum.el
index eacfc1f8294..3ae2e404ae7 100644
--- a/lisp/mail/rmailsum.el
+++ b/lisp/mail/rmailsum.el
@@ -1,6 +1,6 @@
 ;;; rmailsum.el --- make summary buffers for the mail reader  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1985, 1993-1996, 2000-2019 Free Software Foundation,
+;; Copyright (C) 1985, 1993-1996, 2000-2020 Free Software Foundation,
 ;; Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/sendmail.el b/lisp/mail/sendmail.el
index e71f98282ad..91d097d678a 100644
--- a/lisp/mail/sendmail.el
+++ b/lisp/mail/sendmail.el
@@ -1,6 +1,6 @@
 ;;; sendmail.el --- mail sending commands for Emacs  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1985-1986, 1992-1996, 1998, 2000-2019 Free Software
+;; Copyright (C) 1985-1986, 1992-1996, 1998, 2000-2020 Free Software
 ;; Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/smtpmail.el b/lisp/mail/smtpmail.el
index 9cf28fbe8a5..f5c9432879f 100644
--- a/lisp/mail/smtpmail.el
+++ b/lisp/mail/smtpmail.el
@@ -1,6 +1,6 @@
 ;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1995-1996, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1995-1996, 2001-2020 Free Software Foundation, Inc.
 
 ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/supercite.el b/lisp/mail/supercite.el
index f292920d30e..b8595343fcd 100644
--- a/lisp/mail/supercite.el
+++ b/lisp/mail/supercite.el
@@ -1,6 +1,6 @@
 ;;; supercite.el --- minor mode for citing mail and news replies
 
-;; Copyright (C) 1993, 1997, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1993, 1997, 2001-2020 Free Software Foundation, Inc.
 
 ;; Author: 1993 Barry A. Warsaw <bwarsaw@python.org>
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/uce.el b/lisp/mail/uce.el
index 7225cda6c0e..2a1e4f35538 100644
--- a/lisp/mail/uce.el
+++ b/lisp/mail/uce.el
@@ -1,6 +1,6 @@
 ;;; uce.el --- facilitate reply to unsolicited commercial email
 
-;; Copyright (C) 1996, 1998, 2000-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1998, 2000-2020 Free Software Foundation, Inc.
 
 ;; Author: stanislav shalunov <shalunov@mccme.ru>
 ;; Created: 10 Dec 1996
diff --git a/lisp/mail/undigest.el b/lisp/mail/undigest.el
index bbf3c83c55f..9ac5f35988b 100644
--- a/lisp/mail/undigest.el
+++ b/lisp/mail/undigest.el
@@ -1,6 +1,6 @@
 ;;; undigest.el --- digest-cracking support for the RMAIL mail reader  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1985-1986, 1994, 1996, 2001-2019 Free Software
+;; Copyright (C) 1985-1986, 1994, 1996, 2001-2020 Free Software
 ;; Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
diff --git a/lisp/mail/unrmail.el b/lisp/mail/unrmail.el
index 4d9ad67262a..e1f137819dc 100644
--- a/lisp/mail/unrmail.el
+++ b/lisp/mail/unrmail.el
@@ -1,6 +1,6 @@
 ;;; unrmail.el --- convert Rmail Babyl files to mbox files
 
-;; Copyright (C) 1992, 2001-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1992, 2001-2020 Free Software Foundation, Inc.
 
 ;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: mail
diff --git a/lisp/mail/uudecode.el b/lisp/mail/uudecode.el
index 9ccdceeeb3f..9423275b2e5 100644
--- a/lisp/mail/uudecode.el
+++ b/lisp/mail/uudecode.el
@@ -1,6 +1,6 @@
 ;;; uudecode.el -- elisp native uudecode  -*- lexical-binding:t -*-
 
-;; Copyright (C) 1998-2019 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2020 Free Software Foundation, Inc.
 
 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
 ;; Keywords: uudecode news
diff --git a/lisp/mail/yenc.el b/lisp/mail/yenc.el
index 75b62c14117..58e2965940b 100644
--- a/lisp/mail/yenc.el
+++ b/lisp/mail/yenc.el
@@ -1,6 +1,6 @@
 ;;; yenc.el --- elisp native yenc decoder  -*- lexical-binding:t -*-
 
-;; Copyright (C) 2002-2019 Free Software Foundation, Inc.
+;; Copyright (C) 2002-2020 Free Software Foundation, Inc.
 
 ;; Author: Jesper Harder <harder@ifa.au.dk>
 ;; Keywords: yenc news