"attr" Warning in slapcat

Hi,

having a strange warning:

# /usr/sbin/slapcat -b dc=foo,dc=bar,com 583422d0 /etc/ldap/slapd.d: line 1: "attr" is deprecated (and undocumented); use "attrs" instead.

Then, the normal output of slapcat follows.

The thing is, /etc/ldap/slapd.d is a *folder* and in the entire /etc/ldap folder, including subdirs, the string "attr" does not occur.

Btw, The contents of /etc/ldap/slapd.d are: -rw------- 1 openldap openldap 2386 Jun 5 13:51 cn=config.ldif drwxr-x--- 6 openldap openldap 4096 Nov 20 20:32 cn=config

Can anyone give me a hint, what is going on?

Best, Kilian