(svn r8159) -Cleanup: Sprinkle some coding-style and comments on the disaster code.
You require the data files of the original Transport Tycoon Deluxe
for Windows to play the game. You have to manually copy the following
files to %{_gamesdatadir}/openttd/data/
sample.cat
trg1r.grf
trgcr.grf
trghr.grf
trgir.grf
trgtr.grf