Comment 3 for bug 33378

(From update of attachment 749)
This patch was derived in part from Jared Yanovich's sftp patch posted to
openssh-unix-dev in Oct 2003.

http://marc.theaimsgroup.com/?l=openssh-unix-dev&m=106498593122963&w=2

I removed the code in my version of the patch that handled the 'recurse'
command in sftp but forgot to remove the documentation about that command.
Trivial to either add back or to remove the references to it in the docs.