old_contents: #!/usr/bin/env python
  # main: loader of all the command entry points.
  
  from pkg_resources import iter_entry_points
  
  
  for entry_point in iter_entry_points('rasterio.rio_commands'):
      entry_point.load()
  
new_contents: #!/usr/bin/env python
  # main: loader of all the command entry points.
  
  from pkg_resources import iter_entry_points
  
  from rasterio.rio.cli import cli
  
  
  for entry_point in iter_entry_points('rasterio.rio_commands'):
      entry_point.load()
  
subject: Add back import of cli.