fix logical wrong in dut.step,when not_want_to_find ==True fix when dut.new_line is not None, use it in dut.write
fix logical wrong in dut.step,when not_want_to_find ==True
fix when dut.new_line is not None, use it in dut.write

try-dash-now/gDasH,try-dash-now/gDasH