Stop DRb service.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46296 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/rinda/test_rinda.rb

@@ -525,6 +525,7 @@ class TupleSpaceProxyTest < Test::Unit::TestCase
     assert_equal([[:test_take, 42]], @ts_base.read_all([:test_take, nil]),
                  '[bug:8215] tuple lost')
   ensure
+    service.stop_service if service
     signal = /mswin|mingw/ =~ RUBY_PLATFORM ? "KILL" : "TERM"
     Process.kill(signal, write) if write && status.nil?
     Process.kill(signal, take)  if take