Add copyright.

(AUTHORS): I suppose I've written it.

src/true.c

@@ -1,3 +1,20 @@
+/* Exit with a status code indicating success.
+   Copyright (C) 1999-2003 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
 #include <config.h>
 #include <stdio.h>
 #include <sys/types.h>
@@ -6,7 +23,7 @@
 #include "closeout.h"
 
 #define PROGRAM_NAME "true"
-#define AUTHORS "no one"
+#define AUTHORS "Jim Meyering"
 
 /* The name this program was run with. */
 char *program_name;