Improve StumpWM command formatting.

This is patch fixes 2 minor formatting bugs in the helm stump commands module.

Origionally the output looked like:

![screenshot from 2013-09-15 08 44 42](https://f.cloud.github.com/assets/2660/1144384/8c9aba96-1d8f-11e3-9ee5-5ddbea518b1a.png)

This patch sorts and removes any whitespace around the commands:

![screenshot from 2013-09-15 08 44 09](https://f.cloud.github.com/assets/2660/1144385/a7ce7078-1d8f-11e3-936f-5bce319c37e0.png)