Fix the Paver run_all_servers method.
Fix the Paver run_all_servers method.

This command was broken by 85814f0b because multi-character short
options were introduced with `--asset_settings_lms` and
`--asset_settings_cms`.

edx-solutions/edx-platform,gymnasium/edx-platform,openfun/edx-platform,openfun/edx-platform,cecep-edu/edx-platform,gymnasium/edx-platform,appsembler/edx-platform,cecep-edu/edx-platform,Edraak/edx-platform,edx-solutions/edx-platform,Edraak/circleci-edx-platform,gymnasium/edx-platform,edx-solutions/edx-platform,chand3040/cloud_that,cecep-edu/edx-platform,gymnasium/edx-platform,chand3040/cloud_that,Edraak/edx-platform,openfun/edx-platform,Edraak/circleci-edx-platform,Edraak/edx-platform,appsembler/edx-platform,knehez/edx-platform,chand3040/cloud_that,cecep-edu/edx-platform,knehez/edx-platform,cecep-edu/edx-platform,appsembler/edx-platform,chand3040/cloud_that,openfun/edx-platform,Edraak/edx-platform,knehez/edx-platform,knehez/edx-platform,knehez/edx-platform,marcore/edx-platform,marcore/edx-platform,marcore/edx-platform,Edraak/circleci-edx-platform,marcore/edx-platform,Edraak/circleci-edx-platform,edx-solutions/edx-platform,chand3040/cloud_that,Edraak/edx-platform,Edraak/circleci-edx-platform,openfun/edx-platform,appsembler/edx-platform