Hide linux netstat stderr output on travis CI
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		@@ -5,7 +5,7 @@ end
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def x_socket_check pid
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					def x_socket_check pid
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  case RbConfig::CONFIG['host_os']
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					  case RbConfig::CONFIG['host_os']
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  when /linux/
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					  when /linux/
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    `netstat -xp`.lines.grep /\s+#{pid}\/ruby/
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					    `netstat -xp 2> /dev/null`.lines.grep /\s+#{pid}\/ruby/
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  else
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					  else
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    `sockstat -u`.lines.grep /\s+ruby.+\s+#{pid}/
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					    `sockstat -u`.lines.grep /\s+ruby.+\s+#{pid}/
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  end.any?
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					  end.any?
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