CID 314969: Control flow issues (DEADCODE) in zoneconf.c

Coverity Scan identified the following issue in bin/named/zoneconf.c on Sunday December 27 on v9_16 and main:

*** CID 314969:  Control flow issues  (DEADCODE)
/bin/named/zoneconf.c: 2212 in named_zone_inlinesigning()
2206     	if (!inline_signing && !zone_is_dynamic &&
2207     	    cfg_map_get(zoptions, "dnssec-policy", &signing) == ISC_R_SUCCESS &&
2208     	    signing != NULL)
2209     	{
2210     		if (strcmp(cfg_obj_asstring(signing), "none") != 0) {
2211     			inline_signing = true;
>>>     CID 314969:  Control flow issues  (DEADCODE)
>>>     Execution cannot reach the expression ""no"" inside this statement: "dns_zone_log(zone, 1, "inli...".
2212     			dns_zone_log(
2213     				zone, ISC_LOG_DEBUG(1), "inline-signing: %s",
2214     				inline_signing
2215     					? "implicitly through dnssec-policy"
2216     					: "no");
2217     		} else {

The culprit likely lies in cf420b2a as it's the only change in that file between last two Coverity Scan runs.

Coverity Scan link: https://scan8.coverity.com/reports.htm#v38342/p12579/fileInstanceId=38520332&defectInstanceId=11383777&mergedDefectId=314969.