extra 2004 in texinfo.tex's copyright years

[Alexandre Duret-Lutz]

I noticed this spurious addition when upgrading my copy of texinfo.tex:

| --- texinfo.tex
| +++ texinfo.tex
| @@ -3,9 +3,9 @@
|  % Load plain if necessary, i.e., if running under initex.
|  \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
|  %
| -\def\texinfoversion{2004-04-24.16}
| +\def\texinfoversion{2004-04-29.05}
|  %
| -% Copyright (C) 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
| +% Copyright (C) 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995, 2004,
|  % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
|  % Foundation, Inc.
|  %

-- 
Alexandre Duret-Lutz