Previous (original) version of btree routines.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                10266   23700  43.3% -lh5- faa3 Sep  2  1986 Btree2/btree
[generic]                 4540   14874  30.5% -lh5- 7946 Sep  2  1986 Btree2/btree.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         2 files   14806   38574  38.4%            Sep  2  1987