Broken pull --update command and no tripleo files synced to local folder as a result

[ciecierski]

Running command ./os-diff pull --update is not copying files to local /tmp/tripleo dir as expected.
My os-diff.cfg is:

[Default]

local_config_dir=/tmp/
service_config_file=config.yaml

[Tripleo]

ssh_cmd=ssh -F ~/.ssh/config
director_host=osp-controller-0
container_engine=podman
sudo=True
connection=ssh
remote_config_path=/tmp/tripleo
local_config_path=/tmp/

[Openshift]

ocp_local_config_path=/tmp/ocp
connection=local
ssh_cmd=""

I suspect the bug was introduced in
https://github.com/openstack-k8s-operators/os-diff/pull/54
There is missing host in rsync command before colon in line 223 or maybe if should be undercloud == "" in line 222