syslog "progname" uses a full path rather than a basename

[sysmonk]

Howdy,

Finally looking at upgrading our log-courier installations (2.0.6 -> 2.6.2).
We've got a rsyslog configuration, which sends 'log-courier' logs to a specific log file. Something like this:

:programname,contains,"log-courier" /var/log/log-courier.log
&~

But after upgrading this stopped working. The issue is that the progname is now a full path:
Before:

Sep  9 12:59:43 stankea log-courier[15511]: Loading registrar data from /var/run//.log-courier

Now:

Sep  9 13:50:54 stankea /usr/local/bin/log-courier[26304]: Loading registrar data from /var/run//.log-courier

And based on the documentation, the slash is a terminator, so the /usr/local/bin/log-courier becomes an empty progname:
Docs:

programname
the “static” part of the tag, as defined by BSD syslogd. For example, when TAG is “named[12345]”, programname is “named”.

Precisely, the programname is terminated by either (whichever occurs first):

end of tag
nonprintable character
‘:’
‘[‘
‘/’

Technically, it's probably not a bug, but a feature request :) Is it possible to have the log use basename($0) rather than the full path to the binary?

[driskell]

Currently testing from the log-courier2-testing repository and if all good overnight I will tag up a release.