Merge branch '6.1' into 6.2

* 6.1:
  [HttpKernel] Fix empty request stack when terminating with exception
  [HttpKernel] Remove EOL when using error_log() in HttpKernel Logger
  [HttpClient] Add test case for seeking into the content of RetryableHttpClient responses
  [HttpClient] Fix buffering after calling AsyncContext::passthru()
  s/annd/and
  s/gargage/garbage
  [HttpClient] fix merge
  [HttpClient] Don't override header if is x-www-form-urlencoded
  [Console] Fix error output on windows cli
  Reserve keys when using numeric ones
  add missing Azerbaijani translations
  fix few typos/inconsistencies in latvian translations
  Fix TypeError in Router when using UrlGenerator
  [Messenger] Fix amqp socket lost
  fix: use message object from event

Author: nicolas-grekas

Application.php

@@ -264,7 +264,7 @@ public function doRun(InputInterface $input, OutputInterface $output)
                 $alternative = $alternatives[0];
 
                 $style = new SymfonyStyle($input, $output);
-                $style->block(sprintf("\nCommand \"%s\" is not defined.\n", $name), null, 'error');
+                $style->block(sprintf('Command "%s" is not defined.', $name), null, 'error', ' ', true);
                 if (!$style->confirm(sprintf('Do you want to run "%s" instead? ', $alternative), false)) {
                     if (null !== $this->dispatcher) {
                         $event = new ConsoleErrorEvent($input, $output, $e);
@@ -918,11 +918,21 @@ protected function configureIO(InputInterface $input, OutputInterface $output)
         }
 
         switch ($shellVerbosity = (int) getenv('SHELL_VERBOSITY')) {
-            case -1: $output->setVerbosity(OutputInterface::VERBOSITY_QUIET); break;
-            case 1: $output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE); break;
-            case 2: $output->setVerbosity(OutputInterface::VERBOSITY_VERY_VERBOSE); break;
-            case 3: $output->setVerbosity(OutputInterface::VERBOSITY_DEBUG); break;
-            default: $shellVerbosity = 0; break;
+            case -1:
+                $output->setVerbosity(OutputInterface::VERBOSITY_QUIET);
+                break;
+            case 1:
+                $output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE);
+                break;
+            case 2:
+                $output->setVerbosity(OutputInterface::VERBOSITY_VERY_VERBOSE);
+                break;
+            case 3:
+                $output->setVerbosity(OutputInterface::VERBOSITY_DEBUG);
+                break;
+            default:
+                $shellVerbosity = 0;
+                break;
         }
 
         if (true === $input->hasParameterOption(['--quiet', '-q'], true)) {