[Simh] loading file

[Gary Lee Phillips]

If you have the PAK file that comes from the hobbyist distribution, it
is in fact written in DCL format so it is executable as a .COM
procedure.

Make sure the file is set executable, then run it from the command
line by putting an @ at the beginning of the file name. If the file is
complete and uncorrupted, it issues all the license updates for you,
and removes any expired licenses at the same time.

--Gary