Fix line breaks on add-ons with spaces

**Before**

![before](https://f.cloud.github.com/assets/38347/702457/e54a1bdc-dd93-11e2-9d07-eb2b760d3417.png)

**After**

![after](https://f.cloud.github.com/assets/38347/702460/ed875274-dd93-11e2-803e-744e08f25913.png)