provide auto fix for GFF

uk/ac/sanger/artemis/components/ValidateViewer.java

@@ -63,7 +63,9 @@ class ValidateViewer extends FileViewer implements EntryGroupChangeListener
     update(features);
     setVisible(true);
 
-    final JButton fixButton = new JButton("Auto-Fix");
+    if( entryGrp == null || GeneUtils.isGFFEntry( entryGrp ) )
+    {
+      final JButton fixButton = new JButton("Auto-Fix Boundaries");
       fixButton.addActionListener(new ActionListener() 
       {
         public void actionPerformed(ActionEvent e) 
@@ -82,6 +84,7 @@ class ValidateViewer extends FileViewer implements EntryGroupChangeListener
         }
       });
       button_panel.add(fixButton);
+    }
     
     button_panel.add(showFailedFeatures);
     showFailedFeatures.addItemListener(new ItemListener(){