Update the errNoManager() to conform to `swarm join-token` Upstream-commit: 01f38dc42c7203ab2f86e6193cfa38e84eb2389a Component: engine
Update the errNoManager() to conform to `swarm join-token` Upstream-commit: 01f38dc42c7203ab2f86e6193cfa38e84eb2389a Component: engine