[Configuration] Ask for a rephrasing of a part concerning real env vars and env vars created by .env files

[lkolndeep]

Hello folks,

In this section of the Symfony docs: Overriding env values via env local, there is a paragraph at the end of the section that I don't really understand:

Real environment variables always win over env vars created by any of the .env files. This behavior depends on variables_order to contain an E to expose the $_ENV superglobal.

I think it could be nice to rephrase the second sentence in particular that part "to contain an E to expose the $_ENV superglobal" that I don't understand.

Thanks in advance,

Regards,