Default Phone Requesting Superusser Permission

Has this happened to anyone else before? It just happened and I'm a bit confused :/ Why would HTC's phone app want a superuser permission?

Sent from my HTC Butterfly S using xda app-developers app
HTC Butterfly S - Insertcoin ; HTC One X - Cyanogenmod (Dead) ; Samsung Galaxy Note 10.1 - Stock (Don't buy, sucks ass)

"With blood and rage of crimson red, Ripped from a corpse so freshly dead,

Together with our hellish hate, We'll burn you all--that is your fate!"