Add CHANGELOG entry for pull request #241, commit a7c5771

Signed-off-by: Isaac Bennetch <bennetch@gmail.com>

Author: ibennetch

CHANGELOG.md

@@ -9,6 +9,7 @@
 * Fix incorrect outputs from Query::getClause (#233)
 * Add support for reading an SQL file from stdin
 * Fix for missing tokenize-query in Composer's vendor/bin/ directory
+* Fix for PHP warnings with an incomplete CASE expression (#241)
 
 ## [4.3.1] - 2019-01-05