Don't delete desktoppicture.db when resetting launchpad

530142A0-6AEC-4921-A3A7-7C2B72FFF6E3.db and desktoppicture.db exist in ~/Library/Application\ Support/Dock, so I've added a '-' with a wildcard '*' to both sides to ensure we don't delete desktoppicture.db and reset the desktop wallpaper.