old_contents: # -*- coding: utf-8 -*-
  """ Example of definition of a bore field using custom borehole positions.
  
  """
  from __future__ import absolute_import, division, print_function
  
  import pygfunction as gt
  
  
  def main():
      a = 1
  
  
  if __name__ == '__main__':
      main()
new_contents: # -*- coding: utf-8 -*-
  """ Example of definition of a bore field using custom borehole positions.
  
  """
  from __future__ import absolute_import, division, print_function
  
  import pygfunction as gt
  
  
  def main():
      a = 1
  
  
  if __name__ == '__main__':
      main()
  
subject: add end of line to example file