Wolfchev lab prerequisite (#3372)

Prerequisite is Cursed Spirit Quest

Thanks to @admkakaroto !

npc/re/instances/WolfchevLaboratory.txt

@@ -21,7 +21,7 @@ lighthalzen,303,303,6	script	Giacomo Girolamo#kiup2	4_M_KHMAN,3,3,{
 		mes "^FF0000 Check up your inventory. You got too many items to carry out the quest. ^000000";
 		close;
 	}
-	if (lhz_boss > 30) {
+	if (lhz_curse > 30) {
 		if (!lght_duk01) {
 			if (Sex == SEX_MALE) {
 				emotion ET_HNG;
@@ -309,7 +309,7 @@ OnTouch:
 			warp "que_lhz", 148, 215;
 		}
 	} else {
-		if (lhz_boss < 31) {
+		if (lhz_curse < 31) {
 			mes "- Whistling sound -";
 			mes "From below, there comes a gruesome sound mingling with the wind.";
 			close2;