* lib/rinda/ring.rb:  Announce RingServer for the same process.
	  [ruby-trunk - Bug #9163]
	* test/rinda/test_rinda.rb:  Tests for the above.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43872 b2dd03c8-39d4-4d8f-98ff-823fe69b080e