adjust php cs fixer configuration to not want to change the code to b…

…e incompatible with PHP 7

.php-cs-fixer.dist.php

@@ -12,7 +12,8 @@
     ->setRiskyAllowed(true)
     ->setRules([
         '@Symfony' => true,
-        'single_line_throw' => false,
+	'single_line_throw' => false,
+        'trailing_comma_in_multiline' => false, // for methods this is incompatible with PHP 7
     ])
     ->setFinder($finder)
 ;