tests: process58 - fix cleaning of processes in case of test failure
tests: process58 - fix cleaning of processes in case of test failure

redhatrises/openscap,ybznek/openscap,mpreisler/openscap,jan-cerny/openscap,redhatrises/openscap,openprivacy/openscap,mpreisler/openscap,openprivacy/openscap,redhatrises/openscap,mpreisler/openscap,openprivacy/openscap,OpenSCAP/openscap,openprivacy/openscap,postfix/openscap,ybznek/openscap,jan-cerny/openscap,redhatrises/openscap,jan-cerny/openscap,Hexadorsimal/openscap,postfix/openscap,OpenSCAP/openscap,ybznek/openscap,postfix/openscap,Hexadorsimal/openscap,ybznek/openscap,jan-cerny/openscap,postfix/openscap,Hexadorsimal/openscap,postfix/openscap,ybznek/openscap,redhatrises/openscap,mpreisler/openscap,Hexadorsimal/openscap,mpreisler/openscap,OpenSCAP/openscap,redhatrises/openscap,postfix/openscap,Hexadorsimal/openscap,jan-cerny/openscap,openprivacy/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,ybznek/openscap,openprivacy/openscap,mpreisler/openscap,jan-cerny/openscap,OpenSCAP/openscap,OpenSCAP/openscap