What method(s) could/should be used to repair a paper tear in the surface of gypsum board?
This is not a cracked surface nor a hole in the surface, but is at corner areas of the hole in the gypsum board made for mounting a single gang electrical box. Apparently caused by careless removal of the piece removed when making the hole. It is a surface blemish as in only the paper covering.
I don't think this needs application of tape and spackle .