stress command: Forward extra kwargs to subprocess.call
stress command: Forward extra kwargs to subprocess.call

pombredanne/ccm,mike-tr-adamson/ccm,umitunal/ccm,pcmanus/ccm,bcantoni/ccm,mikefero/ccm,spodkowinski/ccm,AtwooTM/ccm,thobbs/ccm,jorgebay/ccm,thobbs/ccm,unusedPhD/ccm,mike-tr-adamson/ccm,pcmanus/ccm,mike-tr-adamson/ccm,pcmanus/ccm,slivne/ccm,aboudreault/ccm,tolbertam/ccm,jeffjirsa/ccm,mikefero/ccm,kishkaru/ccm,mambocab/ccm,bcantoni/ccm,tolbertam/ccm,josh-mckenzie/ccm