Where is ruby ri documentation?

[Carl Johnson]

I am trying out a 10.0-RELEASE installation, but when I tried to look at
ruby documentation with ri it doesn't find anything.  I try 'ri String'
and it just says 'Nothing known about String'.  There is some
documentation for ri, but only what has been installed by various gems.
I have looked but I don't see where it has been split out into a
separate port.  I have installed ruby-1.9.3.484,1 using pkg, if that
makes any difference.

Thanks for any information.
-- 
Carl Johnson		carlj at peak.org