Hints for libretro-nestopia in universe

Errors

• internal-unknown-tag
  The generator emitted a tag 'internal-unknown-tag' which is unknown. This is a bug in the metadata generator, please file a bugreport.
• internal-unknown-tag
  The generator emitted a tag 'internal-unknown-tag' which is unknown. This is a bug in the metadata generator, please file a bugreport.