Merge branch '4.3' into 4.4

* 4.3:
  [FWBundle] Remove unused parameter
  [Intl] [Workflow] fixes English grammar typos
  [Filesystem] [Serializer] fixes English grammar typo
  [Messenger] Adding exception to amqp transport in case amqp ext is not installed
  [Monolog Bridge] Fixed accessing static property as non static.
  Improve Symfony description
  Add DateTimeZoneNormalizer into Dependency Injection
  [Messenger] Error when specified default bus is not among the configured
  [Validator] Add Japanese translation
  [Workflow] Apply the same logic of precedence between the apply() and the buildTransitionBlockerList() method
  Remove some unused methods parameters
  Avoid empty \"If-Modified-Since\" header in validation request
  [Security] Fix SwitchUser is broken when the User Provider always returns a valid user
  Fix error message according to the new regex
  compatibility with DoctrineBundle 2
  [Validator] ConstraintValidatorTestCase: add missing return value to mocked validate method calls

Author: Robin Chalas

Currencies.php

@@ -46,7 +46,7 @@ public static function exists(string $currency): bool
     }
 
     /**
-     * @throws MissingResourceException if the currency code does not exists
+     * @throws MissingResourceException if the currency code does not exist
      */
     public static function getName(string $currency, string $displayLocale = null): string
     {
@@ -78,7 +78,7 @@ public static function getNames(string $displayLocale = null): array
     }
 
     /**
-     * @throws MissingResourceException if the currency code does not exists
+     * @throws MissingResourceException if the currency code does not exist
      */
     public static function getSymbol(string $currency, string $displayLocale = null): string
     {
@@ -115,7 +115,7 @@ public static function getNumericCode(string $currency): int
     }
 
     /**
-     * @throws MissingResourceException if the numeric code does not exists
+     * @throws MissingResourceException if the numeric code does not exist
      */
     public static function forNumericCode(int $numericCode): array
     {

Locales.php

@@ -49,7 +49,7 @@ public static function exists(string $locale): bool
     }
 
     /**
-     * @throws MissingResourceException if the locale does not exists
+     * @throws MissingResourceException if the locale does not exist
      */
     public static function getName(string $locale, string $displayLocale = null): string
     {

Scripts.php

@@ -41,7 +41,7 @@ public static function exists(string $script): bool
     }
 
     /**
-     * @throws MissingResourceException if the script code does not exists
+     * @throws MissingResourceException if the script code does not exist
      */
     public static function getName(string $script, string $displayLocale = null): string
     {