How does litout work

[Doug Gwyn <gwyn>]

>  I seem to recall that LITOUT
> was slightly buggy and you had to go thru some special contortions
> to get it to work properly.

The word was that LITOUT would not stick unless you set it a
second time.  I don't know why this would happen; sure seems
strange.  But we have had similar problems with other aspects
of the tty handler (such as input flushing occurring AFTER
the ioctl has returned), at least on UTX-32, so maybe it can
really happen.  Yet another mystery..