last fix for sorting due dates

ftplugin/todo.vim

@@ -72,6 +72,14 @@ function! TodoTxtToggleComplete()
         exec "s/^/x " . strftime('%Y-%m-%d') . " /"
     endif
 endfunction
+
+function! TodoTxtSortDue()
+    :silent! %s/\(due:\d\{4}\)-\(\d\{2}\)-\(\d\{2}\)/\1\2\3/g
+    :sort n /due:/
+    :silent! %s/\(due:\d\{4}\)/\1-/g
+    :silent! %s/\(due:\d\{4}-\d\{2}\)/\1-/g
+    " TODO: add time sorting (YYYY-MM-DD HH:MM)
+endfunction
 
 " Mappings {{{1
 " Sort tasks {{{2
@@ -185,7 +193,7 @@ endif
 endif
 
 " Sort @_sched by due: date {{{2
-if !hasmapto("<leader>sd".'n')
+if !hasmapto("<leader>sd".'n')
     nnoremap <script> <silent> <buffer> <leader>sd :call TodoTxtSortDue()<CR>
 endif