[OVAL] fix segfault in _oval_component_evaluate_ESCAPE_REGEX()
[OVAL] fix segfault in _oval_component_evaluate_ESCAPE_REGEX()

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