cannot lock user password with passwd on ldap

[Herbert Gasiorowski <gasi3 web de>]

I cannot lock a users password using:

....# passwd -l testuser
Locking password for user testuser.
passwd: Error (password not set?)

But I managed to change his password!

Is this a bug (in libuser)?

--
mfg
Herbert Gasiorowski
http://www.mathematik.uni-marburg.de/~gasi/