[utils] oscap: enable passing of oval command options through environment variable
[utils] oscap: enable passing of oval command options through environment variable

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