Merge branch '4.3' into 4.4

* 4.3:
  [Security/Http] fix typo in deprecation message
  Various tweaks 3.4
  Various tweaks 4.3
  [PhpUnit] Fix usleep mock return value
  [Lock] use Predis\ClientInterface instead of Predis\Client
  Fix version typo in deprecation notice
  Make legacy "wrong" RFC2047 encoding apply only to one header

Author: nicolas-grekas

Loader/PhpFileLoader.php

@@ -40,7 +40,7 @@ public function load($file, $type = null)
 
         // the closure forbids access to the private scope in the included file
         $loader = $this;
-        $load = \Closure::bind(static function ($file) use ($loader) {
+        $load = \Closure::bind(static function ($file) {
             return include $file;
         }, null, ProtectedPhpFileLoader::class);
 

Matcher/Dumper/PhpMatcherDumper.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Routing\Matcher\Dumper;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.2, use "CompiledUrlMatcherDumper" instead.', PhpMatcherDumper::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.3, use "CompiledUrlMatcherDumper" instead.', PhpMatcherDumper::class), E_USER_DEPRECATED);
 
 /**
  * PhpMatcherDumper creates a PHP class able to match URLs for a given set of routes.