Add a missing changelog entry

Author: bbatsov

CHANGELOG.md

@@ -5,7 +5,8 @@
 ### Bugs fixed
 
 * Prevent error when calling `indent-for-tab-command` at the start of
-  the buffer at end of line.
+the buffer at end of line.
+* [#274](https://github.com/clojure-emacs/clojure-mode/issues/274): Correct font-locking of certain punctuation character literals.
 
 ## 4.0.1 (19/12/2014)