O or U ?????????

Which one is correct kan???? Is it Bunut or Bunot????? All this time I thought is was Bunut you know but then today I went to shopping at  that area Hua Ho and I saw this road sign named 
Jalan Tanjong Bunot ???
 Since when it has change already or all this time that is the original name. 
 But I went inside the kampong I still see some sign is Bunut and the Hua Ho building there aslo written Bunut also!!!!  Aiya me now blur blur already... is it Bunut or Bunot kan???
Please correct me!!!