normal	2017-05-20 06:34:04 +0900 (Sat, 20 May 2017)

  New Revision: 58807

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=58807

  Log:
    fix off-by-one in r58806

  Modified files:
    trunk/test/ruby/test_io.rb
Index: test/ruby/test_io.rb
===================================================================
--- test/ruby/test_io.rb	(revision 58806)
+++ test/ruby/test_io.rb	(revision 58807)
@@ -3558,7 +3558,7 @@ __END__ https://github.com/ruby/ruby/blob/trunk/test/ruby/test_io.rb#L3558
     TCPServer.open('localhost', 0) do |svr|
       con = TCPSocket.new('localhost', svr.addr[1])
       acc = svr.accept
-      assert_equal 6, con.send('hello', Socket::MSG_OOB)
+      assert_equal 5, con.send('hello', Socket::MSG_OOB)
       set = IO.select(nil, nil, [acc], 30)
       assert_equal([[], [], [acc]], set, 'IO#select exceptions array OK')
       acc.close

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