Add linux_pre_run_command to soundness #75

Job	Run time
Soundness / Unacceptable language check	2s
Soundness / License headers check	4s
Soundness / API breakage check	0s
Soundness / Broken symlinks check	4s
Soundness / Documentation check	41s
Soundness / Shell check	32s
Soundness / YAML lint check	4s
Soundness / Format check	0s
Soundness / Python lint check	6s
	1m 33s

Provide feedback