Podman will always pass down --syslog to conmon since 13c2aca21.
However there systems without syslog running, likely in container
setups. As reported in this was already a problem before when debug
level is used. Then conmon will pass down --syslog back to the podman
container cleanup command causing it to fail without doing anything.
Given that I think it is better to just ignore the error and log it on
debug level, we need to make sure cleanup works consistently.
[NO NEW TESTS NEEDED]
Fixes#19075
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
