Fixed Berserker potion Job ID, mages and wizards could use it.

git-svn-id: https://svn.code.sf.net/p/rathena/svn/athena@86 54d463be-8e91-2dee-dedb-b68131a5f0ec

Changelog.txt

@@ -1,6 +1,6 @@
 Date	Added
 11/09
-	* - Added Unbreakable funcions to item_db armors/shields/garments/footgear. [shadow]
+	* - Added Unbreakable funcions to item_db armors/shields/garments/footgear. Fixed item 657 Job ID [shadow]
 	* Defined SO_REUSEPORT to allow the servers to re-use ports if server crashes [Wizputer]
 
 11/08