Fix wrong pronunciation, thanks to Ben Bullock

See #17

Author: nshmyrev

cmudict.dict

@@ -13809,7 +13809,7 @@ borrowed B AA1 R OW2 D
 borrower B AA1 R OW0 ER0
 borrower's B AA1 R OW0 ER0 Z
 borrowers B AA1 R OW0 ER0 Z
-borrowers' B AO1 R AH0 ER0 Z
+borrowers' B AA1 R OW0 ER0 Z
 borrowing B AA1 R OW0 IH0 NG
 borrowings B AA1 R OW0 IH0 NG Z
 borrowman B AA1 R OW0 M AH0 N