This is a rudementary dearchiver for GPK archives, which are a common way to
transport GEOS applications - mainly for the famous OmniGo 100 organizer from
HP!

Usage: GPK <archivename>

The archive will be unarchived to single files with the complete path as
filename.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                18315   46908  39.0% -lh5- 8e58 Sep  1  1996 gpk
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         1 file    18315   46908  39.0%            Sep  1  1996