Reword the recent deobfuscation changes

In most cases the word was changed to 'obfuscation' as it was about
obfuscation, not deobfuscation. In some cases like 1995/leo since the
file was (in 1995/leo) about a secret switch it was changed to
'secret.md' (and 'secret.html') but there were others like that as well.

One entry had the words 'spoiling the size rule' but this had been
changed to 'deobfuscating the size rule' which was obviously wrong.

In the latter YYYY/README.md files the judges had written after some
entries (brief summaries) '...

    ...We'll stop spouting spoilers now. Have fun exploring all the
    entries!

but that was changed to:

    ...We'll stop spouting deobfuscation information now. Have fun
    exploring all the entries!

which wasn't really about deobfuscation but just a brief summary of what
the entries did.

And in the most problematic case (at least for me :-), 2018/ferguson) I
had put a joke in:

    ... but it's the only Easter egg I won't spoil

but it was changed to 'won't deobfuscate' which not only is not what it
is but it spoilt the joke.

In some cases the word was changed back to 'SPOILER' (or similar) but in
most cases not. I believe it should be better now. There are some
caveats, however, as below.

Although make find_missing_links is okay I do not remember if this will
catch links that refer to '%%REPO_URL%%' or other pandoc tokens. This
means I might have to go back to some earlier years to verify links are
okay. That should not take that much time I hope.

It might also be that some wording can still be improved some but it is
hoped this will be discovered when checking links and looking over the
manifest (which obviously changed).

2020/endoh2/.entry.json

@@ -66,7 +66,7 @@
 	    "entry_text" : "sample input"
 	},
 	{
-	    "file_path" : "deobfuscation/code.c",
+	    "file_path" : "obfuscation/code.c",
 	    "inventory_order" : 200,
 	    "OK_to_edit" : true,
 	    "display_as" : "c",
@@ -74,7 +74,7 @@
 	    "entry_text" : "debofuscated code main logic"
 	},
 	{
-	    "file_path" : "deobfuscation/gen.rb",
+	    "file_path" : "obfuscation/gen.rb",
 	    "inventory_order" : 200,
 	    "OK_to_edit" : true,
 	    "display_as" : "ruby",
@@ -82,7 +82,7 @@
 	    "entry_text" : "ruby code to compose items and prog.c in artistic way"
 	},
 	{
-	    "file_path" : "deobfuscation/glyphs.txt",
+	    "file_path" : "obfuscation/glyphs.txt",
 	    "inventory_order" : 200,
 	    "OK_to_edit" : true,
 	    "display_as" : "text",
@@ -90,7 +90,7 @@
 	    "entry_text" : "glyphs data for deobfuscation/gen.rb"
 	},
 	{
-	    "file_path" : "deobfuscation/index.html",
+	    "file_path" : "obfuscation/index.html",
 	    "inventory_order" : 200,
 	    "OK_to_edit" : true,
 	    "display_as" : "html",
@@ -98,7 +98,7 @@
 	    "entry_text" : "deobfuscation information web page"
 	},
 	{
-	    "file_path" : "deobfuscation/prog.c",
+	    "file_path" : "obfuscation/prog.c",
 	    "inventory_order" : 200,
 	    "OK_to_edit" : true,
 	    "display_as" : "c",
@@ -106,7 +106,7 @@
 	    "entry_text" : "deobfuscated source code"
 	},
 	{
-	    "file_path" : "deobfuscation/tmpl.txt",
+	    "file_path" : "obfuscation/tmpl.txt",
 	    "inventory_order" : 200,
 	    "OK_to_edit" : true,
 	    "display_as" : "text",
@@ -154,7 +154,7 @@
 	    "entry_text" : "markdown source for this web page"
 	},
 	{
-	    "file_path" : "deobfuscation/index.md",
+	    "file_path" : "obfuscation/index.md",
 	    "inventory_order" : 4000000000,
 	    "OK_to_edit" : true,
 	    "display_as" : "markdown",

2020/endoh2/Makefile

@@ -115,7 +115,8 @@ ENTRY= endoh2
 PROG= prog
 #
 OBJ= ${PROG}.o
-DATA= bear.txt hello.txt yoda.txt
+DATA= bear.txt hello.txt yoda.txt obfuscation/code.c obfuscation/gen.rb obfuscation/glyphs.txt \
+      obfuscation/index.md obfuscation/prog.c obfuscation/tmpl.txt
 TARGET= ${PROG}
 #
 ALT_OBJ=

2020/endoh2/README.md

@@ -29,11 +29,11 @@ What happens if you do
 
 ## Judges' remarks:
 
-Clever use of the C99 complex data type. The [deobfuscation](deobfuscation/index.html) directory
+Clever use of the C99 complex data type. The [obfuscation](obfuscation/index.html) directory
 contains clues as to how some winning authors create / edit programs into ASCII
 shapes.
 
-With the source from the [deobfuscation](deobfuscation/index.html) directory could you make the code
+With the source from the [obfuscation](obfuscation/index.html) directory could you make the code
 render for a larger terminal window?  How about adding more glyphs?
 
 

2020/endoh2/index.html

@@ -411,10 +411,10 @@ Location: <a href="../../location.html#JP">JP</a> - <em>Japan</em></li>
 <pre><code>    ./prog prog.c</code></pre>
 <p>?</p>
 <h2 id="judges-remarks">Judges’ remarks:</h2>
-<p>Clever use of the C99 complex data type. The <a href="deobfuscation/index.html">deobfuscation</a> directory
+<p>Clever use of the C99 complex data type. The <a href="obfuscation/index.html">obfuscation</a> directory
 contains clues as to how some winning authors create / edit programs into ASCII
 shapes.</p>
-<p>With the source from the <a href="deobfuscation/index.html">deobfuscation</a> directory could you make the code
+<p>With the source from the <a href="obfuscation/index.html">obfuscation</a> directory could you make the code
 render for a larger terminal window? How about adding more glyphs?</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <p>No! Try not. Do, or do not. There is no try.</p>
@@ -455,20 +455,20 @@ render for a larger terminal window? How about adding more glyphs?</p>
 <li><a href="hello.txt">hello.txt</a> - sample input</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/try.sh">try.sh</a> - script to try entry</li>
 <li><a href="yoda.txt">yoda.txt</a> - sample input</li>
-<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/deobfuscation/code.c">deobfuscation/code.c</a> - debofuscated code main logic</li>
-<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/deobfuscation/gen.rb">deobfuscation/gen.rb</a> - ruby code to compose items and prog.c in artistic way</li>
-<li><a href="deobfuscation/glyphs.txt">deobfuscation/glyphs.txt</a> - glyphs data for deobfuscation/gen.rb</li>
-<li><a href="deobfuscation/index.html">deobfuscation/index.html</a> - deobfuscation information web page</li>
-<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/deobfuscation/prog.c">deobfuscation/prog.c</a> - deobfuscated source code</li>
-<li><a href="deobfuscation/tmpl.txt">deobfuscation/tmpl.txt</a> - template for deobfuscation/gen.rb output</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/obfuscation/code.c">obfuscation/code.c</a> - debofuscated code main logic</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/obfuscation/gen.rb">obfuscation/gen.rb</a> - ruby code to compose items and prog.c in artistic way</li>
+<li><a href="obfuscation/glyphs.txt">obfuscation/glyphs.txt</a> - glyphs data for deobfuscation/gen.rb</li>
+<li><a href="obfuscation/index.html">obfuscation/index.html</a> - deobfuscation information web page</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/obfuscation/prog.c">obfuscation/prog.c</a> - deobfuscated source code</li>
+<li><a href="obfuscation/tmpl.txt">obfuscation/tmpl.txt</a> - template for deobfuscation/gen.rb output</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>
 <li><a href="2020_endoh2.tar.bz2">2020_endoh2.tar.bz2</a> - download entry tarball</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/README.md">README.md</a> - markdown source for this web page</li>
-<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/deobfuscation/index.md">deobfuscation/index.md</a> - markdown source for deobfuscationr/index.html</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/.entry.json">.entry.json</a> - entry summary and manifest in JSON</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/.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/2020/endoh2/obfuscation/index.md">obfuscation/index.md</a> - markdown source for deobfuscationr/index.html</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/.path">.path</a> - directory path from top level directory</li>
 <li><a href="index.html">index.html</a> - this web page</li>
 </ul>

2020/endoh2/obfuscation/index.html

@@ -26,13 +26,13 @@
 
 <!-- -->
 <!-- This web page was formed via the tool: bin/gen-other-html.sh -->
-<!-- The content of main section of this web page came from: 2020/endoh2/deobfuscation/index.md -->
+<!-- The content of main section of this web page came from: 2020/endoh2/obfuscation/index.md -->
 <!-- -->
 
 <!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
-<!-- !!! Do not modify this web page, instead modify the file: 2020/endoh2/deobfuscation/index.md !!! -->
-<!-- !!! Do not modify this web page, instead modify the file: 2020/endoh2/deobfuscation/index.md !!! -->
-<!-- !!! Do not modify this web page, instead modify the file: 2020/endoh2/deobfuscation/index.md !!! -->
+<!-- !!! Do not modify this web page, instead modify the file: 2020/endoh2/obfuscation/index.md !!! -->
+<!-- !!! Do not modify this web page, instead modify the file: 2020/endoh2/obfuscation/index.md !!! -->
+<!-- !!! Do not modify this web page, instead modify the file: 2020/endoh2/obfuscation/index.md !!! -->
 <!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
 
 <!-- Markdown content was converted into HTML via the tool: bin/md2html.sh -->
@@ -371,7 +371,7 @@
 
 <div class="navbar">
   <a class="Left" href="../index.html">&uarr; jump to index.html &uarr;</a>
-  <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2020%2Fendoh2%2Fdeobfuscation%2Findex.html">&#x2713;</a>
+  <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2020%2Fendoh2%2Fobfuscation%2Findex.html">&#x2713;</a>
 </div>
 
 <!-- END: this line ends content from: inc/navbar.up2index.html -->
@@ -382,19 +382,20 @@
 <!-- END: this line ends content from: inc/before-content.default.html -->
 <!-- START: this line starts content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
 
-<!-- BEFORE: 1st line of markdown file: 2020/endoh2/deobfuscation/index.md -->
+<!-- BEFORE: 1st line of markdown file: 2020/endoh2/obfuscation/index.md -->
 <h1 id="opening-crawl-rot13-decoder">Opening crawl ROT13 decoder</h1>
 <p>The program contains dedicated font data for all uppercase alphabet letters.</p>
 <p>The source code of the font is <a href="glyphs.txt">glyphs.txt</a>, which is a sequence of
 chunks that is a ASCII code (65-90) followed by points data: <code>x,y,ctrl</code>.</p>
-<p>If <code>ctrl</code> is 1, the point is used as control point for quadratic bezier curve.</p>
-<p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/deobfuscation/code.c">code.c</a> is the main logic for the program, which has some placeholders
+<p>If <code>ctrl</code> is 1, the point is used as control point for quadratic <a href="https://en.wikipedia.org/wiki/Bézier_curve">bézier
+curve</a>.</p>
+<p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/obfuscation/code.c">code.c</a> is the main logic for the program, which has some placeholders
 for font data and something.</p>
 <p>It decompresses the font data and renders a given text by projection. It
 exploits <code>C99</code>’s <code>double complex</code> type to represent 2D points, but carefully
 coded so that it does not require any <code>math.h</code> functions; you don’t have to pass
 <code>-lm</code> to <code>cc</code>.</p>
-<p><a href="tmpl.txt">tmpl.txt</a> is a template for the program. <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/deobfuscation/gen.rb">gen.rb</a> composes
+<p><a href="tmpl.txt">tmpl.txt</a> is a template for the program. <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/obfuscation/gen.rb">gen.rb</a> composes
 the all items and generates <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2020/endoh2/prog.c">prog.c</a>.</p>
 <hr style="width:10%;text-align:left;margin-left:0">
 <p>Jump to: <a href="#">top</a></p>
@@ -411,7 +412,7 @@ the all items and generates <a href="https://github.com/ioccc-src/temp-test-iocc
         https://creativecommons.org/licenses/by-sa/4.0/
 
 -->
-<!-- AFTER: last line of markdown file: 2020/endoh2/deobfuscation/index.md -->
+<!-- AFTER: last line of markdown file: 2020/endoh2/obfuscation/index.md -->
 
 <!-- END: this line ends content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
 <!-- START: this line starts content from: inc/after-content.default.html -->
@@ -471,7 +472,7 @@ the all items and generates <a href="https://github.com/ioccc-src/temp-test-iocc
 
     <div id="coda"><h3>Coda</h3>
 	<p>
-	<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2020%2Fendoh2%2Fdeobfuscation%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
+	<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2020%2Fendoh2%2Fobfuscation%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
 	<a href="#top">Jump to top</a> <a href="#content">Jump to Content</a>
 	</p>
     </div>

2020/endoh2/obfuscation/index.md

@@ -5,9 +5,10 @@ The program contains dedicated font data for all uppercase alphabet letters.
 The source code of the font is [glyphs.txt](glyphs.txt), which is a sequence of
 chunks that is a ASCII code (65-90) followed by points data: `x,y,ctrl`.
 
-If `ctrl` is 1, the point is used as control point for quadratic bezier curve.
+If `ctrl` is 1, the point is used as control point for quadratic [bézier
+curve](https://en.wikipedia.org/wiki/Bézier_curve).
 
-[code.c](%%REPO_URL%%/2020/endoh2/deobfuscation/code.c) is the main logic for the program, which has some placeholders
+[code.c](%%REPO_URL%%/2020/endoh2/obfuscation/code.c) is the main logic for the program, which has some placeholders
 for font data and something.
 
 It decompresses the font data and renders a given text by projection.  It
@@ -15,7 +16,7 @@ exploits `C99`'s `double complex` type to represent 2D points, but carefully
 coded so that it does not require any `math.h` functions; you don't have to pass
 `-lm` to `cc`.
 
-[tmpl.txt](tmpl.txt) is a template for the program.  [gen.rb](%%REPO_URL%%/2020/endoh2/deobfuscation/gen.rb) composes
+[tmpl.txt](tmpl.txt) is a template for the program.  [gen.rb](%%REPO_URL%%/2020/endoh2/obfuscation/gen.rb) composes
 the all items and generates [prog.c](%%REPO_URL%%/2020/endoh2/prog.c).