Unknown option `--tail` when running `drush ws --tail` I am using Drush version 9.0-dev-dev. 

When I run drush ws --tail, I get the following error:

[error]  Unknown option: --tail.  See `drush help watchdog-show` for available options. To suppress this error, add the option --strict=0.


I've used this with all other versions of drush with no issues.
It's all in the linked issue.


  Some existing Drush commands were simplified in Drush 9. I think that
  --tail would still be a welcome addition, if someone wanted to submit a PR.


But as of today the pull request is still unmerged. Maybe you can reanimate it and provide some help.