Improve changelog

Author: vy

src/changelog/2.25.2/3940_ThrowableStackTraceRenderer_ArrayIndexOutOfBoundsException.xml

@@ -5,8 +5,9 @@
            https://logging.apache.org/xml/ns
            https://logging.apache.org/xml/ns/log4j-changelog-0.xsd"
        type="fixed">
-  <issue id="3940" link="https://github.com/apache/logging-log4j2/pull/3940"/>
+  <issue id="3940" link="https://github.com/apache/logging-log4j2/issues/3940"/>
+  <issue id="3955" link="https://github.com/apache/logging-log4j2/pull/3955"/>
   <description format="asciidoc">
-    Fixes `ArrayIndexOutOfBoundsException` thrown by `ThrowableStackTraceRenderer` when a `Throwable`'s stacktrace is mutated concurrently.
+    Fixes `ArrayIndexOutOfBoundsException` thrown by `ThrowableStackTraceRenderer` when the stack trace is mutated concurrently.
   </description>
 </entry>