Correct typo: add missing "we"

I was wondering on the "Redundancy is the root of all evil" phrase if that should be changed to "Repetition" or duplication -- for example, Erlang would not consider Redundancy to be evil.
This is the phrasing I always hear.  So I'd like to keep this as "Redundancy".  If you can modify the pull request to remove this one, then I can accept it through the web.  Otherwise, I'll have to wait until I can get in there and merge it by hand.