"-v" handling in scp (was Re: add scp path to _PATH_STDPATH)

[Dan Kaminsky]

> Why?  It's much better just outright fail.

Why outright fail?  It's not inconcievable that future versions of OpenSSH
might support greater than 3 instances of -v.  Why should we break upwards
compatibility?

> And then reuse the 'print_verbose()' macro.  Incase some day we
> wish to support more or less verboseness.

Like you say ;-)

--Dan