[oscap] fixing compiler warnings
[oscap] fixing compiler warnings

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