In tmux, any dispatch command output starts with complaints from [hub](https://github.com/github/hub) and [direnv](https://github.com/zimbatm/direnv) ``` || direnv: error Unknown target shell '' || hub alias: unknown shell ``` There is nothing clever going on in my [tmux.conf](https://github.com/artemave/myrcs/blob/master/.tmux.conf) tmux 1.8/1.9a