code: def validate_lines(results, bad_lines):
          
  
          if results and len(results) == 1:
              first = results[0]
              if any(l in first.lower() for l in bad_lines):
                  return False
          return True
docs: If `results` contains a single line and that line is included
          in the `bad_lines` list, this function returns `False`. If no bad
          line is found the function returns `True`
  
          Parameters:
              results(str): The results string of the output from the command
                  defined by the command spec.
  
          Returns:
              (Boolean): True for no bad lines or False for bad line found.