Bug#1124329: setgid angband

[Eric Branlund]

Angband has an option to configure, --with-private-dirs , so that the high scores and save files are written to the player's directories, specifically ~/.angband/Angband/save will hold the save files and ~/.angband/Angband/scores/scores.raw will hold the high scores.  The executable is not setgid when built with that option to configure.  That option affects all of the front ends:  curses, X11, SDL, or SDL2.

backwardsEric - current Angband maintainer