gabebw/vim-spec-runner — pull request #6 by christoomey (2014-03-25 21:54:28+00:00)
Title: Abort and warn user if unable to determine correct runner

[Trello Card](https://trello.com/c/KDaqGNPT/15-don-t-run-anything-when-unable-to-determine-runner)

- Do not execute command if unable to determine runner
- Warn the user

This borrows on the work to define rspec as the runner to provide a happy path