Spree translate function on ccv_link was returning translation missing

With the current code, this comes up in the Payment screen: 

(<span class="translation_missing" title="translation missing: en.whats_this">Whats This</span>)

Super simple change from t(:whats_this) to t(:what_is_this) fixes the error.

![Screen shot 2013-02-11 at 10 11 08 PM](https://f.cloud.github.com/assets/838618/147872/21ac2eca-74db-11e2-99d4-a1abdaf141d6.PNG)