is a variable defined in `
Its value is
Whether auth-source should log debug messages.
If the value is nil, debug messages are not logged.
If the value is t, debug messages are logged with `message'. In
that case, your authentication data will be in the clear (except
If the value is a function, debug messages are logged by calling
that function using the same arguments as `message'.
You can customize this variable.
This variable was introduced, or its default value was changed, in
version 23.2 of Emacs.