Tweak a changelog entry

Author: bbatsov

CHANGELOG.md

@@ -9,7 +9,7 @@
 ### Bugs fixed
 
 * [#581](https://github.com/clojure-emacs/clojure-mode/issues/581): Fix font locking not working for keywords starting with a number.
-* [#377](https://github.com/clojure-emacs/clojure-mode/issues/377): Fix everything starting with 'def' being highlighted as a def form.
+* [#377](https://github.com/clojure-emacs/clojure-mode/issues/377): Fix everything starting with the prefix 'def' being highlighted as a definition form. Now definition forms are enumerated explicitly in the font-locking code, like all other forms.
 
 ## 5.15.1 (2022-07-30)