Complete using all buffers

ftplugin/todo.vim

@@ -248,9 +248,10 @@ fun! TodoComplete(findstart, base)
         endwhile
         return start
     else
-        let res = []
+        let res = []
+        for bufnr in range(1,bufnr('$'))
             let lines=getbufline(bufnr,1,"$")
-        for line in lines
+            for line in lines
                 if line =~ "([a-Z]).* ".a:base
                     let item={}
                     let item.word=substitute(line,'.*\('.a:base.'\S*\).*','\1',"")
@@ -267,6 +268,7 @@ fun! TodoComplete(findstart, base)
                     endif
                     call add(res,item)
                 endif
+            endfor
         endfor
         return res
     endif