scrapy -h outputs a stray "commands"

[wRAR]

When I run scrapy -h in a project on all Scrapy versions starting with 2.1, I get:

[...]
Available commands:
  bench         Run quick benchmark test
  check         Check spider contracts
  **commands**      
  crawl         Run a spider
  edit          Edit spider
  fetch         Fetch a URL using the Scrapy downloader
[...]

The stray line is not present on older versions. I haven't found its source but it should be easy I think. The list of commands is collected in scrapy.cmdline._get_commands_dict() and printed by scrapy.cmdline._print_commands().