Merge pull request #3828 from BDisp/v2_tabview-fix

Fixes TabView.

Author: tig

Terminal.Gui/Views/TabView.cs

@@ -22,7 +22,7 @@ public string DisplayText
         set
         {
             _displayText = value;
-            SetNeedsDraw ();
+            SetNeedsLayout ();
         }
     }