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Valid-License-Identifier: LGPL-2.1-or-later
SPDX-URL: https://spdx.org/licenses/LGPL-2.1-or-later.html
Usage-Guide:
  To use the GNU Lesser General Public License v2.1 or later put the following
  SPDX tag/value pair into a comment according to the placement guidelines in
  the licensing rules documentation:
    SPDX-License-Identifier: LGPL-2.1-or-later
License-Text:

GNU LESSER GENERAL PUBLIC LICENSE

Version 2.1, February 1999

Copyright (C) 1991, 1999 Free Software Foundation, Inc.

51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Everyone is permitted to copy and distribute verbatim copies of this license
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[This is the first released version of the Lesser GPL. It also counts as the
successor of the GNU Library Public License, version 2, hence the version
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< signature of Ty Coon > , 1 April 1990

Ty Coon, President of Vice

That's all there is to it!