[libgames-support] Improve debug statement

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 63dd7ce2ca08da9044c3be12282e817714eaddfa
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sun Feb 14 16:21:51 2016 -0600

    Improve debug statement

 games/scores/context.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/games/scores/context.vala b/games/scores/context.vala
index f06b8f2..b27ec66 100644
--- a/games/scores/context.vala
+++ b/games/scores/context.vala
@@ -285,7 +285,7 @@ public class Context : Object
             if (tokens.length == 3)
                 user = tokens[2];
             else
-                debug ("Assuming current username for old score in %s.", filename);
+                debug ("Assuming current username for old score %s in %s.", line, filename);
 
             scores_of_single_category.add (new Score (score_value, time, user));
         }