[libgames-support] score: Ensure all scores have a username set

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 1e323cb7e853044ed80c8a37c10f1d428426c881
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sun Feb 14 14:28:00 2016 -0600

    score: Ensure all scores have a username set

 games/scores/score.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/games/scores/score.vala b/games/scores/score.vala
index 4b0ffee..bbbbc81 100644
--- a/games/scores/score.vala
+++ b/games/scores/score.vala
@@ -24,14 +24,14 @@ namespace Scores {
 public class Score : Object
 {
     public long score { get; set; }
-    public string? user { get; set; }
+    public string user { get; set; }
     public int64 time { get; set; }
 
     public Score (long score, int64 time, string? user = null)
     {
         this.score = score;
         this.time = time;
-        this.user = user;
+        this.user = (user == null ? Environment.get_real_name () : user);
     }
 
     public static bool equals (Score a, Score b)