Force dbclient to exit if remote forwarding request failed

[Matt Johnston]

On Mon, Nov 30, 2015 at 04:21:29PM +0300, Konstantin Tokarev wrote:
> >>  I'd like to see that as a feature - I was thinking about it a few days ago. I'd keep it under a command line flag for backwards compatibility. Failing to bind "-L" forward ports would also be handled similarly.
> >>
> > Could you propose command line option name? I guess the main problem is to avoid collision with OpenSSH client options.
> Maybe its time to add -o and use OpenSSH-compatible -o ExitOnForwardFailure=yes?

That does seem like it might the best option. As long as
people don't expect all the OpenSSH -o names to start
getting implemented! :)

Cheers,
Matt