I am trying to make vim more like what I used in Coda 2.
In my .vimrc , I have this line:
set listchars=tab:➝.,extends:
This makes my spaces look like this:

However, Id, not the points that were visible, so itd looks more like this:

I tried using the space character, but in the end I got the following warning:
E474: Invalid argument: listchars=tab:➝
What symbol can I use that will not be visible on the screen and also will not throw a warning?
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