Follow up to 160f24d

* Corrected the battle_config name for the MVP Tomb delay.
Thanks to @secretdataz!

conf/battle/monster.conf

@@ -230,7 +230,7 @@ mvp_tomb_enabled: yes
 
 // Delay before the MVP tomb is spawned.
 // Default: 9 seconds
-mvp_mob_delay: 9000
+mvp_tomb_delay: 9000
 
 // Whether or not the size of specially summoned mobs influences experience, drop rates,
 // and stats. The rates will be doubled for large mobs, and halved for small ones.