This script will pop-up a requester so you can select the game dir for quake
to use without having to use the CLI.  Quake is run with the -fpu and -mmuhack
options on, so edit as necessary.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  329     502  65.5% -lh5- a58f May 30  1998 QuakeGame
[generic]                 2187    2839  77.0% -lh5- 273c May 30  1998 QuakeGame.info
[generic]                  232     384  60.4% -lh5- eb27 May 30  1998 QuakeGameScript.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         3 files    2748    3725  73.8%            May 30  1998