[DOC] Shorten copyright years, also on PDF.

diff --git a/doc/cln.texi b/doc/cln.texi
index c236b46515b8382d527a253079f7a406e62b837f..2531caa05779bc4d0375c5d148b287a8c35baa97 100644 (file)
--- a/doc/cln.texi
+++ b/doc/cln.texi
@@ -71,11 +71,11 @@ by the author.
 @author @uref{http://www.ginac.de/CLN}
 @page
 @vskip 0pt plus 1filll
-Copyright @copyright{} Bruno Haible 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008.
+Copyright @copyright{} Bruno Haible 1995 - 2019.
 @sp 0
-Copyright @copyright{} Richard B. Kreckel 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014.
+Copyright @copyright{} Richard B. Kreckel 2000 - 2019.
 @sp 0
-Copyright @copyright{} Alexei Sheplyakov 2008, 2010.
+Copyright @copyright{} Alexei Sheplyakov 2008 - 2010.
 
 @sp 2
 Published by Bruno Haible, @code{<haible@@clisp.cons.org>} and