regression in logger output to syslog

[Olaf Hering <olaf@aepfle.de>]

I used a script with openSUSE 11.4 which called logger like this:
# logger -t "$l[$PPID] $i" "`sed -n ${c}p < $t`"

The tag was something like "me[123] foo: blah", and the number remained
stable for a single run.

Now with systemd and util-linux-2.26.2 the number does always change. If
I understand the man page correctly this is supposed to achieve the
same, but the $PPID never made it into journalctl -f outout:

logger -t "me"  --id=$PPID "foo: blah"

Instead the pid of the logger processs is used.
How can I restore the old behaviour?

Olaf