Since you haven't gotten an answer yet. I thought I'd chime in. I'm not great with home improvement, but a coworker told me this:
Find the stud that the nail is in.
Use a drywall screw and screw it in near the nail into the stud.
This should pull the drywall closer to the studs and make the nail stick out a little more.
Pull the nail out and fill the hole with putty.
Sand, finish, and paint after the putty has dried.
Colonel, you raped her? Congrats on your promotion to General.