samba - Nov 2013 - empty password

Samba-4.0.10 in AD mode.
I need to have an account with an empty password.
After checking the smb.conf manpage (and also smbpasswd manpage), I added to
the smb.conf file:

     null passwords = Yes

The result is a warning from commands like smbstatus:

WARNING: The "null passwords" option is deprecated

I cannot find the new option to achieve this.  How is it supposed to be
configured
to not be flagged as "deprecated"?

Rob

Rob Janssen <rob at ision.nl> writes:
>> WARNING: The "null passwords" option is deprecated
> I cannot find the new option to achieve this.
> How is it supposed to be configured to not be flagged as
"deprecated"?
Only Samba developers can undeprecate Samba features.

    https://en.wiktionary.org/wiki/deprecate

    2. (computing) To declare something obsolescent; to recommend
       against a function, technique, command, etc. that still works but
       has been replaced.

That warning is saying "null passwords work right now, but we plan to
remove them in the future, so you'd better think of another way to do
whatever it is you're doing."

You might be able to suppress the warning.
If so, I don't know how.