Add dependency on slevomat/coding-standard in CircleCI test

Add dependency on slevomat/coding-standard in CircleCI test

Author: phdhiren

.circleci/code-sniffer.sh

@@ -8,7 +8,7 @@ then
 fi
 
 # Install dependencies and configure phpcs
-vendor/bin/phpcs --config-set installed_paths vendor/drupal/coder/coder_sniffer
+vendor/bin/phpcs --config-set installed_paths vendor/drupal/coder/coder_sniffer,vendor/sirbrillig/phpcs-variable-analysis,vendor/slevomat/coding-standard
 
 vendor/bin/phpmd modules/$1/src html cleancode,codesize,design,unusedcode --ignore-violations-on-exit --reportfile artifacts/phpmd/index.html
 vendor/bin/phpmetrics --extensions=php,inc,module --report-html=artifacts/phpmetrics --git modules/$1

src/EventSubscriber/PageNotFoundEventSubscriber.php

@@ -74,7 +74,7 @@ public function onNotFoundException(GetResponseForExceptionEvent $event) {
     if ($event->getException() instanceof NotFoundHttpException
       && ($uri = $event->getRequest()->getRequestUri())
       && $this->pathMatcher->matchPath($uri, '/api/*/*')
-      && (list(,, $id) = explode('/', $uri))
+      && ([$apitrail, $api, $id] = explode('/', $uri))
       && ($path = "/api/{$id}")
       && $this->pathValidator->isValid($path)
     ) {