Only run warn.py's main function if it is the main program.

  print '{},,{}'.format(total, 'All warnings')

##### Main function starts here. #########################

def main():

  parse_input_file()

  if args.gencsv:

    dump_csv()

  else:

    dump_html()

# Run main function if warn.py is the main program.

if __name__ == '__main__':

  main()