Most of the "lint errors" I've seen you fixing have been good, thanks!
But in Special:Diff/2428490/prev I see you merely added slashes to void tags in a manner that was needed for XHTML but is no longer needed in HTML5 (see #6 here). I recommend not bothering with these additions, it clutters diffs for no purpose. (For that matter, there's also no reason to remove these slashes where they already exist.)