remove trailing blanks in markdown files

We used this command to find markdown files with trailing whitespace.

```sh
find . -name '*.md' -print0 | xargs -0 grep -E -l '[[:space:]][[:space:]]*$'
```

After removal, we did a `make www`.

1987/index.html

@@ -138,8 +138,7 @@ abuse was unusual. The mailboxes for the contest were moved from nsc to
 amdahl. The practice of posting a preliminary set of rules for the next
 year was started this year.</p>
 <p><a href="rules.txt">Rules</a> and results were posted to comp.lang.c
-and comp.unix.wizards with an announcement in
+and comp.unix.wizards with an announcement in news.announce.important.
-news.announce.important.<br />
 <a
 href="https://www.vintage-computer.com/publications.php?microsystemsjournal">Micro/Systems
 Journal</a> published the 1987 winning entries. <a

2012/hou/hint.html

@@ -120,12 +120,6 @@
 <!-- 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 -->
 
-<h1 id="most-useful-obfuscation">Most useful obfuscation</h1>
-<p>Qiming Hou<br />
-<a href="mailto:hqm03ster@gmail.com"
-class="email">hqm03ster@gmail.com</a><br />
-<a href="http://www.houqiming.net"
-class="uri">http://www.houqiming.net</a></p>
 <h2 id="judges-comments">Judges’ comments:</h2>
 <h3 id="to-build">To build:</h3>
 <pre><code>make hou</code></pre>

2012/hou/hint.md

@@ -1,10 +1,3 @@
-# Most useful obfuscation
-
-Qiming Hou  
-<hqm03ster@gmail.com>  
-<http://www.houqiming.net>  
-
-
 ## Judges' comments:
 
 ### To build:

sitemap.xml

@@ -686,7 +686,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1986/marshall/Makefile</loc>
-    <lastmod>2024-03-13T06:48:15+00:00</lastmod>
+    <lastmod>2024-03-13T15:50:52+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1986/marshall/README.md</loc>
@@ -706,7 +706,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1986/marshall/marshall.alt.c</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-13T15:50:52+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1986/marshall/marshall.c</loc>
@@ -850,7 +850,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1987/README.md</loc>
-    <lastmod>2024-03-08T22:52:59+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:27+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1987/biggar/.entry.json</loc>
@@ -982,7 +982,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1987/index.html</loc>
-    <lastmod>2024-03-10T17:00:59+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:34+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1987/korn/.entry.json</loc>
@@ -1574,7 +1574,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1989/fubar/README.md</loc>
-    <lastmod>2024-03-02T23:28:18+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:30+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1989/fubar/fubar.c</loc>
@@ -1590,7 +1590,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1989/fubar/index.html</loc>
-    <lastmod>2024-03-10T17:01:44+00:00</lastmod>
+    <lastmod>2024-03-15T04:28:20+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1989/fubar/try.sh</loc>
@@ -1666,7 +1666,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1989/jar.2/Makefile</loc>
-    <lastmod>2024-03-13T06:51:31+00:00</lastmod>
+    <lastmod>2024-03-13T15:50:52+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1989/jar.2/README.md</loc>
@@ -2574,11 +2574,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1991/brnstnd/sorta.README.html</loc>
-    <lastmod>2024-03-10T17:01:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:49+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1991/brnstnd/sorta.README.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:17+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1991/brnstnd/sorta.i2+2</loc>
@@ -2906,7 +2906,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1991/westley/README.md</loc>
-    <lastmod>2024-03-03T00:06:59+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:14+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1991/westley/index.html</loc>
@@ -3190,7 +3190,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1992/buzzard.2/buzzard.2.README.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:56+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1992/buzzard.2/buzzard.2.alt.c</loc>
@@ -3202,11 +3202,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1992/buzzard.2/buzzard.2.design.html</loc>
-    <lastmod>2024-03-10T17:01:14+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:49+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1992/buzzard.2/buzzard.2.design.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:54+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1992/buzzard.2/buzzard.2.orig.c</loc>
@@ -4046,11 +4046,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1993/rince/design.html</loc>
-    <lastmod>2024-03-10T17:01:14+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:50+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1993/rince/design.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:43+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1993/rince/index.html</loc>
@@ -4526,11 +4526,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1994/shapiro/shapiro.html</loc>
-    <lastmod>2024-03-10T17:01:15+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:50+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1994/shapiro/shapiro.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:46+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1994/shapiro/shapiro.orig.c</loc>
@@ -5730,7 +5730,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1996/schweikh3/README.md</loc>
-    <lastmod>2024-03-02T23:28:18+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:19+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1996/schweikh3/index.html</loc>
@@ -6194,7 +6194,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1998/dorssel/README.md</loc>
-    <lastmod>2024-03-02T23:43:00+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:10+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1998/dorssel/dorssel.c</loc>
@@ -6438,7 +6438,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1998/schweikh3/README.md</loc>
-    <lastmod>2024-03-02T23:28:18+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:12+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/1998/schweikh3/index.html</loc>
@@ -8850,7 +8850,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2005/anon/README.md</loc>
-    <lastmod>2024-03-02T23:28:18+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:24+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2005/anon/anon.alt.c</loc>
@@ -11370,7 +11370,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/deckmyn/deckmyn.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:13+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/deckmyn/deckmyn.orig.c</loc>
@@ -11766,11 +11766,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/hou/hint.html</loc>
-    <lastmod>2024-03-10T17:01:16+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:52+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/hou/hint.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:23+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/hou/hou.c</loc>
@@ -11830,7 +11830,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/kang/README.md</loc>
-    <lastmod>2024-03-02T23:28:18+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:15+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/kang/de.alt.sh</loc>
@@ -11938,7 +11938,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/omoikane/README.md</loc>
-    <lastmod>2024-03-02T23:28:18+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:11+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2012/omoikane/index.html</loc>
@@ -16710,7 +16710,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2019/duble/README.md</loc>
-    <lastmod>2024-03-02T23:28:18+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:59+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2019/duble/check-os.sh</loc>
@@ -17486,15 +17486,15 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/HACKING.html</loc>
-    <lastmod>2024-03-10T17:01:21+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:57+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/HACKING.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:05+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/Makefile</loc>
-    <lastmod>2024-03-13T06:41:49+00:00</lastmod>
+    <lastmod>2024-03-13T15:50:52+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/README.md</loc>
@@ -17538,11 +17538,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/gameplay.html</loc>
-    <lastmod>2024-03-10T17:01:19+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:54+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/gameplay.md</loc>
-    <lastmod>2024-02-28T00:26:33+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:03+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/halfwidth_vs_fullwidth.png</loc>
@@ -17606,11 +17606,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/terminals.html</loc>
-    <lastmod>2024-03-10T17:01:22+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:57+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/terminals.md</loc>
-    <lastmod>2024-02-12T00:24:13+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:08+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/ferguson1/troubleshooting.html</loc>
@@ -17754,7 +17754,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/giles/README.md</loc>
-    <lastmod>2024-03-03T01:25:39+00:00</lastmod>
+    <lastmod>2024-03-15T04:25:00+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/giles/dtmf.bin</loc>
@@ -17762,7 +17762,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/giles/index.html</loc>
-    <lastmod>2024-03-10T17:04:38+00:00</lastmod>
+    <lastmod>2024-03-15T04:31:17+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/2020/giles/pi.wav</loc>
@@ -19234,7 +19234,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/bugs.md</loc>
-    <lastmod>2024-03-02T22:32:55+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:38+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/contact.html</loc>
@@ -19242,7 +19242,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/contact.md</loc>
-    <lastmod>2024-03-03T01:26:04+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:48+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/faq.html</loc>
@@ -19390,7 +19390,7 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/news.md</loc>
-    <lastmod>2024-03-03T00:32:54+00:00</lastmod>
+    <lastmod>2024-03-15T04:24:41+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/robots.txt</loc>
@@ -19402,11 +19402,11 @@
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/thanks-for-help.html</loc>
-    <lastmod>2024-03-10T17:01:12+00:00</lastmod>
+    <lastmod>2024-03-15T04:27:47+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/thanks-for-help.md</loc>
-    <lastmod>2024-03-02T20:30:19+00:00</lastmod>
+    <lastmod>2024-03-15T04:21:48+00:00</lastmod>
 </url>
 <url>
     <loc>https://ioccc-src.github.io/temp-test-ioccc/var.mk</loc>