More updating event macro comments

src/battle_setup.c

@@ -686,7 +686,7 @@ u8 BattleSetup_GetTerrainId(void)
     }
     if (gSaveBlock1Ptr->location.mapGroup == MAP_GROUP(ROUTE113) && gSaveBlock1Ptr->location.mapNum == MAP_NUM(ROUTE113))
         return BATTLE_TERRAIN_SAND;
-    if (GetSav1Weather() == WEATHER_SANDSTORM)
+    if (GetSavedWeather() == WEATHER_SANDSTORM)
         return BATTLE_TERRAIN_SAND;
 
     return BATTLE_TERRAIN_PLAIN;