regression: podman run: exit status 0 after 'rm --force`

```
# (podman run --name foo alpine sleep 30;echo $?)&
[1] 13212
# podman rm --force foo
[pause 10 seconds]
57c5063848af9f40b436d224ea2ef5808c5db591b6cd1aa0addb3be7e3eddf34
# 0   <--- this is the exit status. It should be 137
```
podman-1.5.0-2.fc30.x86_64