Comment 4 for bug 1560550

Suggestion how to quickly fix this: Drop the symbolic link from the `supertux` package, and move it to the `supertux-data` package, so it points to a file in the same package. That will fix the issue, and should make supertux appear in the metadata.

Additionally, adding a smaller icon size (48x48 or 64x64) would be helpful to make DEs work of scaling icons easier ;-) (but that's optional)