MAGETWO-92468: Blacklisting non-Magento code directories from copyright test

Author: pdohogne-magento

dev/tests/static/testsuite/Magento/Test/Legacy/_files/copyright/blacklist.php

@@ -7,5 +7,6 @@
     '/\.(jpe?g|png|gif|ttf|swf|eot|woff|pdf|mp3|pdf|jar|jbf|php\.dist)$/',
     '/pub\/opt\/magento\/var/',
     '/COPYING\.txt/',
-    '/setup\/src\/Zend\/Mvc\/Controller\/LazyControllerAbstractFactory\.php/'
+    '/setup\/src\/Zend\/Mvc\/Controller\/LazyControllerAbstractFactory\.php/',
+    '/app\/code\/(?!Magento)[^\/]*/'
 ];