better string formatting for list + comment

Author: wisefool769

bin/tflocal

@@ -307,7 +307,10 @@ def generate_s3_backend_config() -> str:
                 config_options += f"\n{value}"
                 continue
         elif isinstance(value, list):
-            value = json.dumps(value)
+            # TODO this will break if it's a list of dicts or other complex object
+            # this serialization logic should probably be moved to a separate recursive function
+            as_string = [f'"{item}"' for item in value]
+            value = f'[{", ".join(as_string)}]'
         else:
             value = f'"{str(value)}"'
         config_options += f'\n    {key} = {value}'