old_contents: import sys
  
  
  def version(prog):
      print(prog, "0.0.1")
  
  
  def opterr(prog, wrngopt):
      print("%s: invalid option --\'%s\'" % (prog, wrngopt.opt), file=sys.stderr)
      print("Try \'%s --help\' for more information." % (prog), file=sys.stderr)
      exit(1)
  
  
  def ferr(prog, file):
      print("%s: %s: No such file or directory" % (prog, file), file=sys.stderr)
      exit(2)
  
  
  def missop(prog):
      print("%s: missing operand" % (prog), file=sys.stderr)
      print("Try \'%s --help\' for more information." % (prog), file=sys.stderr)
      exit(1)
  
  
  def extraop(prog, op):
      print("%s: extra operand \'%s\'" % (prog, op), file=sys.stderr)
      print("Try \'%s --help\' for more information." % (prog), file=sys.stderr)
      exit(1)
  
new_contents: import sys
  
  
  def version(prog):
      print(prog, "0.0.1")
  
  
  def opterr(prog, wrngopt):
      print("%s: invalid option -- \'%s\'" % (prog, wrngopt.opt), file=sys.stderr)
      print("Try \'%s --help\' for more information." % (prog), file=sys.stderr)
      exit(1)
  
  
  def ferr(prog, file):
      print("%s: %s: No such file or directory" % (prog, file), file=sys.stderr)
      exit(2)
  
  
  def missop(prog):
      print("%s: missing operand" % (prog), file=sys.stderr)
      print("Try \'%s --help\' for more information." % (prog), file=sys.stderr)
      exit(1)
  
  
  def extraop(prog, op):
      print("%s: extra operand \'%s\'" % (prog, op), file=sys.stderr)
      print("Try \'%s --help\' for more information." % (prog), file=sys.stderr)
      exit(1)
  
subject: Add a blank