RFC: timeout --foreground should not send SIGCONT

[Pádraig Brady]

Given the issues that gdb at least has with SIGCONT,
it might be handy to have sending those as an option.
Now the main reason they are sent is so that
the following times out for example:

  timeout 1 cat&

I.E. a _background_ process that is stopped due to receiving SIGTTIN.
That therefore overlaps quite nicely with --foreground as the option
that causes SIGCONT not to be sent?

thanks,
Pádraig.