Change the bash-shell example to tunnel
Change the bash-shell example to tunnel

This avoids some issues / restrictions when testing with beaker, etc.

glennmatthews/cisco-network-node-utils,glennmatthews/cisco-network-node-utils,jonnytdevops/cisco-network-node-utils,chrisvanheuveln/cisco-network-node-utils,chrisvanheuveln/cisco-network-node-utils,jonnytpuppet/cisco-network-node-utils,bmjen/cisco-network-node-utils,cisco/cisco-network-node-utils,cisco/cisco-network-node-utils