Actually check the value returned for the x-roll-ntime extension to make sure it isn't saying N.

util.c

@@ -227,9 +227,12 @@ static size_t resp_hdr_cb(void *ptr, size_t size, size_t nmemb, void *user_data)
 		applog(LOG_DEBUG, "HTTP hdr(%s): %s", key, val);
 
 	if (!strcasecmp("X-Roll-Ntime", key)) {
+		if (!strcasecmp("Y", val)) {
 			if (opt_debug)
-			applog(LOG_DEBUG, "X-Roll-Ntime found");
+				applog(LOG_DEBUG, "X-Roll-Ntime: Y found");
 			hi->has_rolltime = true;
+		} else if (opt_debug)
+			applog(LOG_DEBUG, "X-Roll-Ntime: N found");
 	}
 
 	if (!strcasecmp("X-Long-Polling", key)) {