Improve ChangeLog entry

Author: sebastianbergmann

ChangeLog-4.8.md

@@ -6,7 +6,7 @@ All notable changes of the PHPUnit 4.8 release series are documented in this fil
 
 ### Fixed
 
-* Fixed [#2384](https://github.com/sebastianbergmann/phpunit/pull/2384): Handle `PHPUnit_Framework_Exception` correctly in `expectedException()`
+* Fixed [#2384](https://github.com/sebastianbergmann/phpunit/pull/2384): Handle `PHPUnit_Framework_Exception` correctly when expecting exceptions
 
 ## [4.8.30] - 2016-12-02