fix several bugs in find_files causing aborts
fix several bugs in find_files causing aborts

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