zfs send -r missing - but documented in zfs(8)

[Yuri Pankov]

On Sun, 2 Sep 2012 15:31:00 -0400, Glen Barber wrote:
> On Sun, Sep 02, 2012 at 09:17:31PM +0200, Thomas Steen Rasmussen wrote:
>>>      Hello list,
>>>
>>>      For some reason it seems like the -r argument to "zfs send" isn't
>>>      implemented in FreeBSD. It is documented in the usage output
>>>      seen below:
>>>
>>>
>>> I had a similar experience with out-of-sync docs and then I think a
>>> missing mergemaster might have had something to do with it.
>>>
>> Hello,
>>
>> This is not just the manpage out of sync. Ironically
>> the zfs tool itself reports the lower-case -r option
>> in the usage output that it shows me because -r
>> is an invalid option:
>>
>> ------------------------------------------------------------
>> $ zfs send -r
>> invalid option 'r'
>> usage:
>>       send [-DnPpRrv] [-i snapshot | -I snapshot] <snapshot>
>>
>
> I reported this to Martin a few days ago, but not yet had time myself to
> check if this is also a bug upstream.

Talking about upstream, looks like -r was added to usage and man page in 
r13524 by Matthew Ahrens (CCed), but the functionality itself is missing.