fix regex under FAQ 3.6

Ran `make faq sitemap` to perform the above.

Author: lcn2

faq.html

@@ -453,7 +453,7 @@ <h2>Frequently Asked Questions</h2>
 
 <!-- BEFORE: 1st line of markdown file: faq.md -->
 <h1 id="ioccc-faq-table-of-contents">IOCCC FAQ Table of Contents</h1>
-<p>This is FAQ version <strong>28.2.21 2025-07-31</strong>.</p>
+<p>This is FAQ version <strong>28.2.22 2025-08-24</strong>.</p>
 <h2 id="entering-the-ioccc-the-bare-minimum-you-need-to-know">0. <a href="#enter_questions">Entering the IOCCC: the bare minimum you need to know</a></h2>
 <ul>
 <li><strong>Q 0.0</strong>: <a class="normal" href="#enter">How can I enter the IOCCC?</a></li>
@@ -3080,7 +3080,7 @@ <h3 id="q-3.6-what-is-an-author_handle">Q 3.6: What is an <code>author_handle</c
 POSIX safe string plus the use of <code>+</code> (for technical reasons beyond this
 answer). In particular, the <code>author_handle</code> must be an ASCII string or
 32 characters or less that matches this regexp:</p>
-<pre><code>    ^[0-9A-Za-z][0-9A-Za-z._+-]*$&quot;</code></pre>
+<pre><code>    ^[0-9A-Za-z][0-9A-Za-z._+-]*$</code></pre>
 <p>Default <code>author_handle</code>’s do not have multiple consecutive <code>_</code> (underscore)
 characters. Nevertheless, multiple consecutive <code>_</code> (underscore) characters are
 allowed. Contest submitters who wish to override their default <code>author_handle</code>

faq.md

@@ -1,6 +1,6 @@
 # IOCCC FAQ Table of Contents
 
-This is FAQ version **28.2.21 2025-07-31**.
+This is FAQ version **28.2.22 2025-08-24**.
 
 
 ## 0. [Entering the IOCCC: the bare minimum you need to know](#enter_questions)
@@ -3042,7 +3042,7 @@ answer).  In particular, the `author_handle` must be an ASCII string or
 32 characters or less that matches this regexp:
 
 ``` <!---re-->
-    ^[0-9A-Za-z][0-9A-Za-z._+-]*$"
+    ^[0-9A-Za-z][0-9A-Za-z._+-]*$
 ```
 
 Default `author_handle`'s do not have multiple consecutive `_` (underscore)

sitemap.xml

@@ -16750,11 +16750,11 @@
 </url>
 <url>
     <loc>https://www.ioccc.org/faq.html</loc>
-    <lastmod>2025-08-01T17:13:12+00:00</lastmod>
+    <lastmod>2025-08-24T22:21:51+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/faq.md</loc>
-    <lastmod>2025-08-01T17:18:05+00:00</lastmod>
+    <lastmod>2025-08-24T22:21:36+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/inc/index.html</loc>