Deprecrate "excluded_404s" option

CHANGELOG.md

@@ -17,6 +17,7 @@
 * Added timeouts to the pushover, hipchat, slack handlers
 * Dropped support for PHP 5.3, 5.4, and HHVM
 * Added configuration for HttpCodeActivationStrategy
+* Deprecated "excluded_404s" option for Symfony >= 3.4
 
 ## 3.2.0 (2018-03-05)
 

DependencyInjection/MonologExtension.php

@@ -13,6 +13,7 @@
 
 use Monolog\Processor\ProcessorInterface;
 use Monolog\ResettableInterface;
+use Symfony\Bridge\Monolog\Handler\FingersCrossed\HttpCodeActivationStrategy;
 use Symfony\Bridge\Monolog\Processor\TokenProcessor;
 use Symfony\Bridge\Monolog\Processor\WebProcessor;
 use Symfony\Component\HttpKernel\DependencyInjection\Extension;
@@ -343,6 +344,9 @@ private function buildHandler(ContainerBuilder $container, $name, array $handler
             if (isset($handler['activation_strategy'])) {
                 $activation = new Reference($handler['activation_strategy']);
             } elseif (!empty($handler['excluded_404s'])) {
+                if (class_exists(HttpCodeActivationStrategy::class)) {
+                    @trigger_error('The "excluded_404s" option is deprecated in MonologBundle since version 3.4.0, you should rely on the "excluded_http_codes" option instead.', E_USER_DEPRECATED);
+                }
                 $activationDef = new Definition('Symfony\Bridge\Monolog\Handler\FingersCrossed\NotFoundActivationStrategy', array(
                     new Reference('request_stack'),
                     $handler['excluded_404s'],