Utility to tail multiple Kubernetes pod logs at the same time.

# To tail the logs of multiple pods (whose name starts with "my_app") in one go:
kubetail <my_app>

# To tail only a specific container from multiple pods:
kubetail <my_app> -c <my_container>

# To to tail multiple containers from multiple pods:
kubetail <my_app> -c <my_container_1> -c <my_container_2>

# To to tail multiple applications at the same time seperate them by comma:
kubetail <my_app_1>,<my_app_2>