This is GNU m4, a program which copies its input to the output,
expanding macros as it goes.  m4 has built-in functions for including
named files, running Unix commands, doing integer arithmetic,
manipulating text in various ways, recursion, etc...  Macros can also
be user-defined, and can take any number of arguments.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
-rw-rw-r-- 20025/200    280048  849920  32.9% -lh5- 01d1 Mar 30  1998 m4-1.4-bin.tar
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         1 file   280048  849920  32.9%            Mar 16  1998