Comment 1 for bug 549117

Attaching a simple patch that targets adduser. Please consider it for quick inclusion for the next release to stop creating broken user accounts.

* Re-enables EXTRA_GROUPS="users".
* Its not proposing a new behavior (change) but re-enables standard (and prior) bahaviour.
* If an admin does not want user wide collaboration (or wants it only with finer grained groups) he does not create directories owned by the users group.

For a complete fix, something like a postinst script would need to add existing users to the users group.