Merge branch '5.0'

* 5.0:
  [Dotenv] Documentation improvement
  [DI] Clarified deprecation for TypedReference in 4.4
  [Validator] Add missing vietnamese translations
  add German translation
  add missing Messenger options to XML schema definition
  [5.0] Remove some unused variables
  [Validator][ConstraintValidator] Update wrong PRETTY_DATE doc
  [DomCrawler][Form] Fix PHPDoc on get & offsetGet
  [ErrorHandler] fix parsing static return type on interface method annotation (fix #35836)
  prevent method calls on null values
  Return int if scale = 0

Author: fabpot

README.md

@@ -2,7 +2,7 @@ Dotenv Component
 ================
 
 Symfony Dotenv parses `.env` files to make environment variables stored in them
-accessible via `$_SERVER`, `$_ENV` and optionally `getenv()`.
+accessible via `$_SERVER` or `$_ENV`.
 
 Resources
 ---------