Running Firebase-Tools 3.9.1 on a Mac, when I store a \ it adds slashes and converts to \\.

This is an issue when trying to store the Firebase Storage PEM file in environment settings.

--- BEGIN PRIVATE KEY ---\n
...
--- END PRIVATE KEY ---\n

Converts to

--- BEGIN PRIVATE KEY ---\\n
...
--- END PRIVATE KEY ---\\n

Which causes the authentication to fail.

This issue wasn't happening last week, so it appears to be a new issue.