Add some braces to a loop in parse_opts(). A for loop had no braces around its body, which was a single if-else statement. In Advanced Rogue 5, another statement had been added, accidentally removing the if-else from the loop. This could have resulted in an out-of-bounds access to the options array. In the other games, the added braces are only for clarity.

[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