CID 451209: Control flow issue in lib/dns/xfrin.c

Coverity Scan claims an issue in lib/dns/xfrin.c stemming from a5f5f685.

987     
988     	CHECK(dns_dispatch_checkperm(xfr->disp));
989     
990     	zmgr = dns_zone_getmgr(xfr->zone);
991     	if (zmgr != NULL) {
992     		if (result != ISC_R_SUCCESS) {
>>>     CID 451209:  Control flow issues  (DEADCODE)
>>>     Execution cannot reach this statement: "now = isc_time_now();".
993     			now = isc_time_now();
994     			dns_zonemgr_unreachableadd(zmgr, &xfr->primaryaddr,
995     						   &xfr->sourceaddr, &now);
996     			CHECK(result);
997     		} else {
998     			dns_zonemgr_unreachabledel(zmgr, &xfr->primaryaddr,