Work around for Beep not working on RunRev 2.7.x+

[Martin Baxter]

J. Landman Gay wrote:
> problem, but it doesn't mention Mac OS or Linux. I think Rev's beep 
> command would probably work just as you expect on a native OS 9 machine. 
> (Maybe someone with a native OS 9 Mac could take a look?)
> 

The last version of RR for OS9 is 2.6.1, and here on my 233MHz beige G3 
multiple beeping works fine. The final 2 beeps seem  to always have a 
shorter interval between them than the earlier ones.

Martin Baxter