Releases the player's pet. For Hunter pets, this function sends the pet away, never to return (in the default UI, it's called when accepting the "Are you sure you want to permanently abandon your pet?" dialog). For other pets, this function is equivalent to PetDismiss().
See also Pet functions.
Signature:
PetAbandon()
This function does not prompt the user for confirmation before its results take effect -- that behavior is provided by the default UI, and this function is called from the confirmation dialog