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This file is part of groff, the GNU roff type-setting system.

Copyright (C) 2004-2020 Free Software Foundation, Inc.
Written by Peter Schaffter (peter@schaffter.ca).

Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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A copy of the