visionmedia/nib — pull request #127 by mbarzda (2012-08-23 13:04:42+00:00)
Title: Added number of arguments validation for -pos

If added one property, generated second line with null property. An ex.:

```css
relative top 100px
```

Result:

```css
position: relative;
top: 100px;
((null)): 0;
```

After fix the result is:

```css
position: relative;
top: 100px;
```