; Minor fixes related to copyright years

* admin/notes/years: Advise redirecting output of update-copyright
to a file.

* etc/refcards/gnus-refcard.tex (Copyright): Update years.

admin/notes/years

@@ -3,7 +3,9 @@ HOW TO MAINTAIN COPYRIGHT YEARS FOR GNU EMACS
 Maintaining copyright years is now very simple: every time a new year
 rolls around, add that year to every FSF (and AIST) copyright notice.
 Do this by running the 'admin/update-copyright' script on a fresh repo
-checkout.  Inspect the results for plausibility, then commit them.
+checkout, redirecting its output to a file, so that you could later
+examine the files that don't have copyright notices.  Inspect the
+results for plausibility, then commit them.
 
 You should also run the etags test suite in test/manual/etags/.  It
 will most probably fail because the contents of the test files changes

etc/refcards/gnus-refcard.tex

@@ -120,7 +120,7 @@
 %% Gnus logo by Luis Fernandes.
 \newcommand{\Copyright}{%
   \begin{center}
-    Copyright \copyright\ 1995, 2000, 2002--2021 Free Software Foundation, Inc.\\*
+    Copyright \copyright\ 1995, 2000, 2002--2022 Free Software Foundation, Inc.\\*
   \end{center}
 
   Released under the terms of the GNU General Public License version 3 or later.