There were a few places where time_t was passed to printf-like functions,
but the format string specifies %d.
As all of them are time differences, and a fax transmission shouldn't
need more than 2^31 (normally not even 2^15) seconds, cast to (int),
like already in a few other places.
Needed because sizeof(time_t) > sizeof(int) in NetBSD-6 and later.

(is)