Just wanted to say great work on this tool, it is very well put together.

In my testing, I found I wanted to be able to change the output file name from opengraph.json to something else. I skimmed around the code, I think this would be fairly straightforward for me to send a PR in to add, but figured was better to discuss first before sending.

Plan would be only a few changes in __main__.py:

• Add CLI argument to parser around line 126:

  ShareHound/sharehound/__main__.py

  Line 126 in 989edf5

  parser.add_argument("--logfile", default=None, help="Log file to write to")

• Adjust usage for the new output name here around lines 394-401:

  ShareHound/sharehound/__main__.py

  Lines 394 to 401 in 989edf5

  	logger.info('Exporting graph to "%s"' % "opengraph.json")
  	logger.increment_indent()
  	logger.info("Nodes: %d" % graph.get_node_count())
  	logger.info("Edges: %d" % graph.get_edge_count())
  	graph.export_to_file("opengraph.json", include_metadata=False)
  	logger.info(
  	'Graph successfully exported to "%s" (%s)'
  	% ("opengraph.json", filesize(os.path.getsize("opengraph.json")))

Let me know your thoughts, thanks!