title: ui-grid pinning right left a blank space between those columns
body: <p>I have a problem with pinning column. When my grid only have 4 columns, and pin a column to right, it left a blank space between those columns.
  Any suggestion to fix, or is there a method that I can use to re-calculate the grid with
  ps: sr because my bad english
  <a href="https://i.stack.imgur.com/WvYKW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WvYKW.png" alt="enter image description here"></a></p>
  
  <p>Update</p>
  
  <p>Here is the demo link <a href="http://plnkr.co/edit/rxXhduWWoUB2nJifOr8M?p=preview" rel="nofollow noreferrer">http://plnkr.co/edit/rxXhduWWoUB2nJifOr8M?p=preview</a><code></code></p>