about arguments in aws s3 sync

[circleci-public]

about arguments in aws s3 sync

[kzk-maeda]

I've encountered the similar issue.
In my case, I've written circle ci configuration like this:

      - aws-s3/sync:
          arguments: |
            --cache-control "public,max-age=31536000,immutable" \
            --exclude "index.html"
          from: dist
          to: << parameters.s3_url >>

Then, the job failed as below:

aws s3 sync dist s3://bucket/path --cache-control '"public,max-age=31536000,immutable"' '\
--exclude' '"index.html"'

Unknown options: \
--exclude,"index.html"

Exited with code exit status 252