[Modules] Support for newline character in environment variable value

[Xavier D. <xav...@gm...>]

Dear All,

Next version (5.6) will add the ability to define environment variable
whose value contains newline character:

https://modules.readthedocs.io/en/latest/MIGRATING.html#support-for-newline-character-in-environment-variable-value

Regards,
Xavier