Rework 21359 changes file slightly.

changes/21359

@@ -1,8 +1,8 @@
-  o Testing
-    - tortls tests now use an autoconf check to determine if OpenSSL
-      structures are opaque, instead of an explicit version check.
-      See ticket 21359.
 
-  o Minor bugfixes (compilation)
+  o Minor features (portability, compilationc)
     - Support building with recent LibreSSL code that uses opaque
       structures. Closes ticket 21359.
+    - Autoconf now check to determine if OpenSSL
+      structures are opaque, instead of explicitly checking for
+      OpenSSL version numbers. 
+      Part of ticket 21359.