Typo: lowercase letter

ifdattic · weaverryan · commit 5a025aeac2a1 · 2017-07-02T10:38:01.000-04:00
diff --git a/testing.rst b/testing.rst
@@ -29,7 +29,7 @@ command:
 
     $ phpunit
 
-PHPunit is configured by the ``phpunit.xml.dist`` file in the root of your
+PHPUnit is configured by the ``phpunit.xml.dist`` file in the root of your
 Symfony application.
 
 .. tip::
