Add zsh completion for 'docker service {create,update} --container-label{-add,-rm}
Upstream-commit: 3b7ea4d8c3c217f1efc303d3b5e97c3743db6fe0
Component: engine
Add zsh completion for 'docker service {create,update} --container-label{-add,-rm}
Upstream-commit: 3b7ea4d8c3c217f1efc303d3b5e97c3743db6fe0
Component: engine