src/freon.c: Changes long casts to uintptr_t casts
src/freon.c: Changes long casts to uintptr_t casts

Fixes #3141

dnschneid/crouton,dnschneid/crouton,dnschneid/crouton,dnschneid/crouton,dnschneid/crouton,dnschneid/crouton