How to fix 1 tiny typo in the default verification email?

I'm sure this is a simple, easy fix. I just don't know where to look to fix it.

I'm very happy with Elgg fresh out of the box. It does everything I want and I don't want to change any functions - which is great because I'm not that interested in coding. 

However, while I was testing it out with a user profile, I got a verification email which, while it functioned perfectly, HAS A TYPO. As a writer, I can't stand it. It makes my official site emails look spammy to new registrants. Where do I find and eradicate the typo?

Here's the verification email text:

Hi PR,

Before you can start you using Cast, you must confirm your email address.

Please confirm your email address by clicking on the link below:

Otherwise, I'm thrilled with the basics here. I just need to delete one word in the verification email. I was sure someone else must have noticed and fixed this typo before, but I can't find a reference to it in the existing topics.

Please help.

This is Elgg 3.3.7, I named my social site Cast, and I have it on a subdomain of my main site. 

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