Hugs editing on Mac.

[Hans Aberg]

On the version that Pablo and I made
  http://www.matematik.su.se/~haberg/Computer/Hugs98Feb2001MacBin20011012.sit
if the -E string is empty, it launches the file to the MacOS creator
program of the file. (E.g., an BBEdit file will be launched to BBEdit, etc.)

So normally, you should not change it. (I do not remember exactly what
happens when you change it -- it probably tries to launch that name as
well, but not the file to that program name.)

  Hans Aberg