r35304 changes the exception.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35308 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/open-uri/test_open-uri.rb

@@ -113,7 +113,7 @@ class TestOpenURI < Test::Unit::TestCase
         end
       }
       begin
-        assert_raise(Timeout::Error) { URI("http://127.0.0.1:#{port}/foo/bar").read(:read_timeout=>0.01) }
+        assert_raise(Net::ReadTimeout) { URI("http://127.0.0.1:#{port}/foo/bar").read(:read_timeout=>0.01) }
       ensure
         Thread.kill(th)
         th.join