comment update

Author: agentmorris

megadetector/postprocessing/convert_output_format.py

@@ -365,7 +365,11 @@ def convert_csv_to_json(input_path,output_path=None,overwrite=True):
 
 #%% Command-line driver
 
-def main(): # noqa
+def main():
+    """
+    Command-line driver for convert_output_format(), which converts
+    json <--> csv.
+    """
 
     parser = argparse.ArgumentParser()
     parser.add_argument('input_path',type=str,