[doc] Missing documention in ub_resolve_event() for callback parameter was_ratelimited

[jelu]

As subject, doc says

void callback(void* mydata, int rcode, void* packet, int packet_len, int sec, char* why_bogus)

but code says

typedef void (ub_event_callback_type)(void, int, void*, int, int, char*, int);

missing the last int

[wcawijngaards]

The commit adds the documentation to the header file, in the comment for ub_resolve_event. It is was_ratelimited. This is the same was_ratelimited that is also returned in the struct ub_result for queries.

Thank you for the detailed report!

[jelu]

Np Wouter! And thank you for the quick commit! 😄