(ITS#4273) make test logging

[kurt@OpenLDAP.org]

Full_Name: Kurt Zeilenga
Version: HEAD
OS: FreeBSD 4
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (24.205.218.53)
Submitted by: kurt


Previously, running 'make test' would not result in any syslog activity.
With recent changes, one gets:

Message from syslogd@cantor at Tue Dec 20 20:27:47 2005 ...
cantor slapd[77595]: @(#) $OpenLDAP: slapd 2.X (Dec 19 2005 14:06:33) $
kurt@cantor.openldap.org:/home/kurt/versions/devel/servers/slapd

sent to every terminal (due to local syslog.conf settings).  The
syslog'ing behavior should be reverted to none during testing.

Kurt