Function rebpf::libbpf::libbpf_set_print

pub unsafe extern "C" fn libbpf_set_print(
    fn_: Option<unsafe extern "C" fn(u32, *const i8, *mut __va_list_tag) -> i32>
) -> Option<unsafe extern "C" fn(u32, *const i8, *mut __va_list_tag) -> i32>