Follow up r16227 & bugreport:5929 fixed typo. super mega hug to malufett <3

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@16229 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/map/vending.c

@@ -238,7 +238,7 @@ static int vending_checknearnpc_sub(struct block_list* bl, va_list args) {
     struct npc_data *nd = (struct npc_data*)bl;
     
     if( nd->sc.option & (OPTION_HIDE|OPTION_INVISIBLE) )
-        return 1;
+        return 0;
 
     return 1;
 }