bugfix: use of funcref in settings

autoload/denote/meta.vim

@@ -35,9 +35,6 @@ endfunction
 
 " Identifier creation
 function denote#meta#identifier_generate()
-	if g:denote_identifier_fun
-				return execute 'call ' .. g:denote_identifier_fun .. '()'
-	endif
 	return exists('*strftime')
 				\ ? strftime('%Y%m%dT%H%M%S')
 				\ : rand()

autoload/denote/notes.vim

@@ -26,7 +26,7 @@ endfunction
 " This creates a new denote entry with the given title and of the given
 " filetype. The title may be empty.
 function denote#notes#new(title, ft=g:denote_new_ft)
-	let l:identifier=denote#meta#identifier_generate()
+	let l:identifier=g:Denote_identifier_fun()
 	let l:fn=l:identifier .. '--' .. a:title
 				\ ->tolower()
 				\ ->substitute('[^[:fname:]]\|/', '-', 'g')