Adding ctype.h to required headers for the system_info probe
Adding ctype.h to required headers for the system_info probe

This is needed since:
0e2709dd39837522997f2c8364daddaa8d947c4c

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