Some script clean up, document secret base secrets show

src/overworld.c

@@ -863,7 +863,7 @@ static void mli0_load_map(u32 a1)
     isOutdoors = IsMapTypeOutdoors(gMapHeader.mapType);
     isIndoors = IsMapTypeIndoors(gMapHeader.mapType);
 
-    sub_80EB218();
+    CheckLeftFriendsSecretBase();
     TrySetMapSaveWarpStatus();
     ClearTempFieldEventData();
     ResetCyclingRoadChallengeData();