[Pharo 8.0] Build #720: 4542-update-rfEnsure

There is a new Pharo build available!
 
The status of the build #720 was: SUCCESS.

The Pull Request #4543 was integrated: "4542-update-rfEnsure"
Pull request url: https://github.com/pharo-project/pharo/pull/4543

Issue Url: https://github.com/pharo-project/pharo/issues/4542
Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%20and%20branch%20Pipeline/job/Pharo8.0/720/