Why edit ctrlp.vim file to map key not work for me?

[OriLiMu]

already check this link ,

It is work for me.

But why I change the ctrlp.vim in autoload dir like this not work for me.

" Keymaps
let [s:lcmap, s:prtmaps] = ['nn <buffer> <silent>', {
	\ 'PrtBS()':              ['<bs>', '<c-]>'],
	\ 'PrtDelete()':          ['<del>'],
	\ 'PrtDeleteWord()':      ['<c-w>'],
	\ 'PrtClear()':           ['<c-u>'],
	\ 'PrtSelectMove("j")':   ['<c-j>', '<down>'],
	\ 'PrtSelectMove("k")':   ['<c-k>', '<up>'],
	\ 'PrtSelectMove("t")':   ['<Home>', '<kHome>'],
	\ 'PrtSelectMove("b")':   ['<End>', '<kEnd>'],
	\ 'PrtSelectMove("u")':   ['<PageUp>', '<kPageUp>'],
	\ 'PrtSelectMove("d")':   ['<PageDown>', '<kPageDown>'],
	\ 'PrtHistory(-1)':       ['<c-n>'],
	\ 'PrtHistory(1)':        ['<c-p>'],
	\ 'AcceptSelection("e")': ['<cr>', '<2-LeftMouse>'],
	\ 'AcceptSelection("h")': ['<c-x>', '<c-cr>', '<c-s>'],
	\ 'AcceptSelection("t")': ['<c-t>'],
"add this line here"
	\ 'AcceptSelection("t")': ['<cr>'], 
	\ 'AcceptSelection("v")': ['<c-v>', '<RightMouse>'],