-It does not guarantee that the code tests executed properly, but it will help
-pointing out the code that is not tested at all.
+Checking coverage does not guarantee that the tests execute properly, but it
+identifies code that is not executed by any test.
+
+This job reuses the Sonar builder used in Java/Maven projects which runs maven
+twice. The first invocation does nothing for Python projects, so the job uses
+the goal 'validate' by default. The second invocation publishes results using
+the goal 'sonar:sonar' by default.