Add --expect-workers-max-wait parameter

[cyberw]

This is very useful in CI, where you dont want to wait forever if your workers fail to connect.

[atirabassi-eb]

could you add

if runner is not None:
    runner.quit()

here to remove all workers, if any?

[cyberw]

sure

[cyberw]

done

[hdzys]

This error occurred when I run this command：
“locust -f D:\ProgramFiles\cover_app_platform\app\file_upload\ios\20211020-192356\ios_jin_zhi_bo_jg.py --master --master-bind-port 9800 --headless -u 10 -r 2 --expect-worker 2 --expect-workers-max-wait 1 -t 10s -s 10 ”
locust: error: ambiguous option: --expect-worker could match --expect-workers, --expect-workers-max-wait

[cyberw]

Use --expect-workers not --expect-worker