This PR was merged into the 2.3 branch.

Discussion
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[Security][Translation] fixes #14584

| Q             | A
| ------------- | ---
| Fixed tickets | #14584
| License       | MIT

Some french translations are wrong  in the security component.
As #14587 has been closed here's my fix.

Commits
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34c780f [Security][Translation] fixes #14584

* 2.3:
  Fix typo
  Check instance of FormBuilderInterface instead of FormBuilder
  [Security] TokenBasedRememberMeServices test to show why encoding username is required
  [Security] AbstractRememberMeServices::encodeCookie() validates cookie parts
  [console][formater] allow format toString object.
  [HttpFoundation] Fix baseUrl when script filename is contained in pathInfo
  Avoid redirection to XHR URIs
  [HttpFoundation] IpUtils::checkIp4() should allow  networks
  Fix HTML escaping of to-source links
  [FrameworkBundle] Removed unnecessary parameter in TemplateController
  [DomCrawler] Throw an exception if a form field path is incomplete.
  [Console] Delete duplicate test in CommandTest
  [TwigBundle] Refresh twig paths when resources change.
  WebProfiler break words
  fixed typo
  Update README.md
  [HttpKernel] Handle an array vary header in the http cache store
  [Security][Translation] fixes #14584
  [Framework] added test for Router commands.
  Handled bearer authorization header in REDIRECT_ form

Conflicts:
	src/Symfony/Component/Debug/ExceptionHandler.php