Program began originally as PLISTER  for listing a single Pascal
source code files.  Then came CLISTER for C code, PROLISTR for
PROLOG code, FORLISTR for FORTRAN code, etc.

First major change in concept was SHORTQ which combined all
the benefits of the previous programs into one program.  The
program (rather than the user) would decide whether the program
was Pascal, C, Fortran, etc.  Still listing a single file at a
time.

The next major change was FILEQ which was like SHORTQ, but would
handle a "queue" (hence the Q) of files - like 15 or more
files at a time, sending each to the printer sequentially, each
file having access to all the benefits of SHORTQ.

FILEQ was completely "hot-key" controlled.  Actually, it was
never completed.  FILEQM was created which offered an optional
Menu (hence the M) in addition to the hot-keys.  Name reverted
from FILEQM back to FILEQ for simplicity's sake.