Add missing end tags
<!-- ADDS -->
<action issue="LOG4J2-2978" dev="vy" type="add" due-to="Michael Seele">
Add support for Jakarta EE 9 (Tomcat 10 / Jetty 11)
+ </action>
<action issue="LOG4J2-3189" dev="ckozak" type="add">
Improve NameAbbreviator worst-case performance.
+ </action>
<action issue="LOG4J2-3170" dev="vy" type="add" due-to="Gareth Smith">
Make CRLF/HTML encoding run in O(n) worst-case time, rather than O(n^2).
</action>
