github/hubot-scripts — pull request #1338 by sarahjschultz (2014-02-20 00:05:15+00:00)
Title: Allow a double-dash separator in messages without downgrading karma

These should add and subtract karma:
```
: ++
++
: --
--
```

This should not downgrade Hubot's karma:
`Hubot -- is my favorite.`