Validate g:ctrlp_types

Author: mattn

plugin/ctrlp.vim

@@ -10,8 +10,11 @@ if ( exists('g:loaded_ctrlp') && g:loaded_ctrlp ) || v:version < 700 || &cp
 en
 let g:loaded_ctrlp = 1
 
+let s:types = ['fil', 'buf', 'mru']
 if !exists('g:ctrlp_types')
-	let g:ctrlp_types = ['fil', 'buf', 'mru']
+	let g:ctrlp_types = s:types
+el
+	call filter(g:ctrlp_types, "index(['fil', 'buf', 'mru'], v:val)!=-1")
 en
 let [g:ctrlp_lines, g:ctrlp_allfiles, g:ctrlp_alltags, g:ctrlp_alldirs,
 	\ g:ctrlp_allmixes, g:ctrlp_buftags, g:ctrlp_ext_vars, g:ctrlp_builtins]