Sort equally-scored search results by caption.

src/MainForm.cs

@@ -140,7 +140,12 @@ public partial class MainForm : Form
 
         // sort the search results
         results.Sort( (lhs, rhs) => {
-            return (lhs.Item2 == rhs.Item2) ? 0 : (lhs.Item2 > rhs.Item2) ? -1 : +1 ;
+            if ( lhs.Item2 < rhs.Item2 )
+                return +1 ;
+            else if ( lhs.Item2 > rhs.Item2 )
+                return -1 ;
+            // NOTE: We also sort by caption/filename to handle things like "foo-1" vs. "foo-2".
+            return String.Compare( lhs.Item1.caption(), rhs.Item1.caption() ) ;
         } ) ;
         if ( searchQuery != "" && logger.IsInfoEnabled ) {
             if ( results.Count > 0 ) {