Fix reversal of assertion result

test/readline/test_readline.rb

@@ -541,7 +541,7 @@ def test_interrupt_in_other_thread
           end
         end
       rescue Timeout::Error
-        assert true, "Timed out to handle SIGINT.\nLog: #{log}\n----"
+        assert false, "Timed out to handle SIGINT.\nLog: #{log}\n----"
         asserted = true
       end
       [log, Process.wait2(pid)[1]]