force use of pandoc version >= 3.1.12.2

The `bin/pandoc-wrapper.sh` tool will verify that the ssytem
has a recent enough version of `pandoc(1)`.

We explain why we insist on `pandoc(1)`. version >= 3.1.12.2
in comments where the $PANDOC_MIN_VERSION is set.

Added `--wrap=preserve` as a default argument to `pandoc(1)`.
While this change will impact every HTML file generated,
we believe this will improve the ability of someone to look
at the generated HTML and correlate with the original markdown.

Changed `bin/pandoc-wrapper.sh` VERSION from "1.4.2 2024-03-17"
to "1.4.3 2024-03-18".

Performed `make www` to achieve all of the above and to generate
HTML using the new  `--wrap=preserve` `pandoc(1)` mode.

1991/cdupont/index.html

@@ -129,9 +129,9 @@
 
 <h2 id="author"><a name="author"></a>Author:</h2>
 <ul>
-<li>Name: <a href="../../authors.html#Christian_Dupont">Christian
-Dupont</a><br> Location: <a href="../../location.html#FR">FR</a> -
-<em>French Republic</em> (<em>France</em>) <br><br></li>
+<li>Name: <a href="../../authors.html#Christian_Dupont">Christian Dupont</a><br>
+Location: <a href="../../location.html#FR">FR</a> - <em>French Republic</em> (<em>France</em>)
+<br><br></li>
 </ul>
 
 <!-- END: next line ends content generated by: bin/output-index-author.sh -->
@@ -149,61 +149,45 @@ Dupont</a><br> Location: <a href="../../location.html#FR">FR</a> -
 <p>Notice that if you C beautify (cb) or pre-process this program, it
 will no longer work correctly, if at all. (go ahead, try it… :-))</p>
 <p>NOTE: One should remove the final trailing newline to obtain the
-original source file. This step is not needed to compile this entry.</p>
+original source file. This step is not needed to compile
+this entry.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
-<p>The source code holds the letters of the message. Each letter,
-combined with another key letter, is used to compute the coordinates of
-the next letter and key. Thus, the message is code. That is why I use
-silly comments, most often badly spaced.</p>
+<p>The source code holds the letters of the message. Each letter, combined
+with another key letter, is used to compute the coordinates of the next
+letter and key. Thus, the message is code. That is why I use silly
+comments, most often badly spaced.</p>
 <p>The space character sequence between the words is given by a simple
 computation in an octal constant (given here as an hex value, of
 course).</p>
 <p>This way, any message can be mixed into a code, since the keys allow
 you to place the meaningful letters wherever you want.</p>
-<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
-License:</h2>
-<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
-Reserved. You are free to share and adapt this file under the terms of
-this license:</p>
+<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0 License:</h2>
+<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights Reserved.
+You are free to share and adapt this file under the terms of this license:</p>
 <pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
-<p>For more information, see:
-https://creativecommons.org/licenses/by-sa/4.0/</p>
+<p>For more information, see: https://creativecommons.org/licenses/by-sa/4.0/</p>
 
 <!-- END: this line ends content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
 <!-- START: this line starts content for HTML phase 22 by: bin/output-index-inventory.sh via bin/md2html.sh -->
 
 <!-- START: this line starts content generated by: bin/output-index-inventory.sh -->
 
-<h1 id="inventory-for-1991cdupont"><a name="inventory"></a>Inventory for
-1991/cdupont</h1>
+<h1 id="inventory-for-1991cdupont"><a name="inventory"></a>Inventory for 1991/cdupont</h1>
 <p><a href="#top">Jump to top</a></p>
 <h2 id="primary-files">Primary files</h2>
 <ul>
-<li><a
-href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/cdupont.c">cdupont.c</a>
-- entry source</li>
-<li><a
-href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/Makefile">Makefile</a>
-- entry Makefile</li>
-<li><a
-href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/cdupont.orig.c">cdupont.orig.c</a>
-- original source</li>
-<li><a href="1991_cdupont.tar.bz2">1991_cdupont.tar.bz2</a> - download
-entry source</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/cdupont.c">cdupont.c</a> - entry source</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/Makefile">Makefile</a> - entry Makefile</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/cdupont.orig.c">cdupont.orig.c</a> - original source</li>
+<li><a href="1991_cdupont.tar.bz2">1991_cdupont.tar.bz2</a> - download entry source</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
 <li><a href="index.html">index.html</a> - entry home page</li>
-<li><a
-href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/.entry.json">.entry.json</a>
-- description of entry in JSON</li>
-<li><a
-href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/.gitignore">.gitignore</a>
-- list of files that should not be committed under git</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/.entry.json">.entry.json</a> - description of entry in JSON</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
 <li><a href=".path">.path</a> - directory path from top directory</li>
-<li><a
-href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/README.md">README.md</a>
-- markdown source for index.html</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/cdupont/README.md">README.md</a> - markdown source for index.html</li>
 </ul>
 
 <!-- END: next line ends content generated by: bin/output-index-inventory.sh -->