PHPCS: fix up selective exclusion for 4.x

Follow up on 274 and 247

Author: jrfnl

.phpcs.xml.dist

@@ -141,7 +141,7 @@
 	<!-- These tests are limited via `@requires` tags and will only run on PHP versions where
 		 the functionality was not yet deprecated. -->
 	<rule ref="Generic.PHP.DeprecatedFunctions.Deprecated">
-		<exclude-pattern>/tests/Polyfills/AssertClosedResource(Curl|Finfo|Gd|XmlParser)Test\.php$</exclude-pattern>
+		<exclude-pattern>/tests/Polyfills/AssertClosedResource(Curl|Finfo|Gd|XmlParser)Test(Case)?\.php$</exclude-pattern>
 	</rule>
 
 	<!-- The use of `static` in the test cases is on purpose to test support. -->