cmdline for benchmarks executed with campagn

[RomaricKanyamibwa]

A more comprehensive cmdline should appear in the bench_results.yaml file of benchmarks executed with the campaign fonctionality.

At the moment we have something like this:

Benchmark_name: hpl
Date: Fri Sep 4 15:45:33 2020
Platform: campaign-maintenance
Run_directory: ubench/benchmarks/campaign-maintenance-2020-09-04_12-13/hpl/benchmark_runs/000000
cmdline: Campaign
runs:
'2':
[...]

The desired result would be something like this:

Benchmark_name: hpl
Date: Fri Sep 4 15:45:33 2020
Platform: campaign-maintenance
Run_directory: ubench/benchmarks/campaign-maintenance-2020-09-04_12-13/hpl/benchmark_runs/000000
cmdline: ubench run -b hpl -p zbook15 -w 1 2 4
runs:
'2':
[...]

[erothe]

This was actually the standard behaviour in the past, but for some reason it is no longer the case. I have looked into past campaigns where the cmdline value is filled according to your desired result.