Give vimwiki#diary#make_note similar functionality

autoload/vimwiki/diary.vim

@@ -174,8 +174,14 @@ function! vimwiki#diary#make_note(wnum, ...) "{{{
 
   call vimwiki#path#mkdir(VimwikiGet('path', idx).VimwikiGet('diary_rel_path', idx))
 
-  if a:0 && a:1 == 1
-    let cmd = 'tabedit'
+  if a:0
+    if a:1 == 1
+      let cmd = 'tabedit'
+    elseif a:2 == 2
+      let cmd = 'split'
+    elseif a:3 == 3
+      let cmd = 'vsplit'
+    endif
   else
     let cmd = 'edit'
   endif