Update COPYING file

[Bruno Haible]

The COPYING file still reflects the state of affairs before 2021-06-04.
Cf. <https://lists.gnu.org/archive/html/bug-gnulib/2021-06/msg00007.html>.
This patch fixes it.


2024-12-07  Bruno Haible  <bruno@clisp.org>

        Update COPYING file.
        * COPYING: Remove statements that are not true any more since
        2021-06-04.

diff --git a/COPYING b/COPYING
index 6ad3d4b51c..9aaccbc69f 100644
--- a/COPYING
+++ b/COPYING
@@ -1,18 +1,11 @@
-$Id: COPYING,v 1.3 2006-10-26 16:20:28 eggert Exp $
 The files in here are mostly copyright (C) Free Software Foundation, and
 are under assorted licenses.  Mostly, but not entirely, GPL.
 
-Many modules are provided dual-license, either GPL or LGPL at your
-option.  The headers of files in the lib directory (e.g., lib/error.c)
-state GPL for convenience, since the bulk of current gnulib users are
-GPL'd programs.  But the files in the modules directory (e.g.,
-modules/error) state the true license of each file, and when you use
-'gnulib-tool --lgpl --import <modules>', gnulib-tool either rewrites
-the files to have an LGPL header as part of copying them from gnulib
-to your project directory, or fails because the modules you requested
-were not licensed under LGPL.
+The license of each file is stated in that file.
+Additionally, the files in the modules directory state the license of
+the code part (in lib/) of the respective module.
 
-Some of the source files in lib/ have different licenses.  Also, the
-copy of maintain.texi in doc/ has a verbatim-copying license, and
-doc/standards.texi and make-stds.texi are GFDL.  Most (but not all)
+Some of the source files in lib/ have different licenses than GPL or LGPL.
+Also, the copy of maintain.texi in doc/ has a verbatim-copying license,
+and doc/standards.texi and make-stds.texi are GFDL.  Most (but not all)
 m4/*.m4 files have nearly unlimited licenses.