* Moves splitting of `ps` result to helper.
* Users a regexp to extract the different parts
The result of `ps` at least depends on the _LANG_ and the distance of
_start_ to _now_ (start time then the day + hour then month+day)
I've tested with _LANG=en_US.UTF-8_ and _LANG=de_CH.UTF-8_
Closes #20632
See merge request !6245
