Rogue V4: add two more function declarations. Though it was called with different numbers of arguments, add_line() does not need to be a variadic function. Making the second argument mandatory is a better solution.

[Desktop Entry]
Encoding=UTF-8
Name=Rogue
GenericName=Rogue
Comment=The original curses-based adventure game
Exec=rogue
Icon=rogue.png
Terminal=true
Type=Application
Categories=Game;RolePlaying;
Version=1.0