Merge branch '3.4' into 4.3

* 3.4:
  [Debug] fix ClassNotFoundFatalErrorHandler
  [Dotenv] Fixed infinite loop with missing quote followed by quoted value
  [TwigBridge] button_widget now has its title attr translated even if its label = null or false
  [PhpUnitBridge] When using phpenv + phpenv-composer plugin, composer executable is wrapped into a bash script
  [Security] Prevent canceled remember-me cookie from being accepted
  [FrameworkBundle][TranslationUpdateCommand] Do not output positive feedback on stderr

Author: nicolas-grekas

Tests/Functional/ClearRememberMeTest.php

@@ -33,7 +33,7 @@ public function testUserChangeClearsCookie()
         $this->assertNotNull($cookieJar->get('REMEMBERME'));
 
         $client->request('GET', '/foo');
-        $this->assertSame(200, $client->getResponse()->getStatusCode());
+        $this->assertRedirect($client->getResponse(), '/login');
         $this->assertNull($cookieJar->get('REMEMBERME'));
     }
 }

composer.json

@@ -24,7 +24,7 @@
         "symfony/security-core": "~4.3",
         "symfony/security-csrf": "~4.2",
         "symfony/security-guard": "~4.2",
-        "symfony/security-http": "~4.3.9|^4.4.1"
+        "symfony/security-http": "~4.3.10|^4.4.3"
     },
     "require-dev": {
         "symfony/asset": "~3.4|~4.0",