Show more button: icon is closer to the text on iOS6

For some reason on iOS6 the icon was aligned to the left.

## Before

![screen shot 2014-01-21 at 17 58 05](https://f.cloud.github.com/assets/85783/1966244/c8659cb2-82c5-11e3-83b0-e18d0aac439d.PNG)

## After

![screen shot 2014-01-21 at 17 57 56](https://f.cloud.github.com/assets/85783/1966794/58228124-82cd-11e3-9e1f-85ceca77d57f.PNG)