Merge: jenkins: name command test results with `cmd` instead of `run`

Merge: jenkins: name command test results with `cmd` instead of `run`

The infamous bug that caused some tests result to silently make Jenkins go mad is found.
The issue was to have a junit package named `run`; unfortunately, package names are used as is in URL by Jenkins and `run` in URL seems to have a special buggy behavior. Eg

* http://gresil.org/jenkins/job/CI_github/lastCompletedBuild/testReport/run/foo
* http://gresil.org/jenkins/job/CI_github/lastCompletedBuild/testReport/notrun/foo

The solution is to name the pseudo-package `cmd` instead.

Pull-Request: #1639
Reviewed-by: Lucas Bajolet <r4pass@hotmail.com>
Reviewed-by: Alexis Laferrière <alexis.laf@xymus.net>