Fix error if directory already exists on windows

autoload/vundle/scripts.vim

@@ -41,9 +41,12 @@ endf
 func! s:fetch_scripts(to)
   let temp = tempname()
   if has('win32') || has('win64')
-    let d = fnamemodify(expand(a:to), ":h")
+    let scripts_dir = fnamemodify(expand(a:to), ":h")
+    if !isdirectory(scripts_dir)
+      call mkdir(scripts_dir, "p")
+    endif
     exec '!curl http://vim-scripts.org/api/scripts.json > '.temp.
-      \  '&& mkdir '.d.' && move /Y '.temp.' '.a:to
+      \  '&& move /Y '.temp.' '.a:to
   else
     exec '!curl http://vim-scripts.org/api/scripts.json > '.temp.
       \  '&& mkdir -p $(dirname  '.a:to.') && mv -f '.temp.' '.a:to