[tracker] libtracker-sparql-backend: Turn failure to initialize direct backend to a warning

[Carlos Garnacho <carlosg src gnome org>]

commit a6076576b8bc7930738673f3218d1c0cf7f0bae2
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Jul 17 23:23:05 2016 +0200

    libtracker-sparql-backend: Turn failure to initialize direct backend to a warning
    
    This usually indicates a wrong environment, we elegantly fallback to using the
    bus backend so this is for the most part not noticeable by the user. Turn this
    into a warning so the problem is more visible.

 src/libtracker-sparql-backend/tracker-backend.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-sparql-backend/tracker-backend.vala 
b/src/libtracker-sparql-backend/tracker-backend.vala
index df0cf6c..5c2f4a5 100644
--- a/src/libtracker-sparql-backend/tracker-backend.vala
+++ b/src/libtracker-sparql-backend/tracker-backend.vala
@@ -208,7 +208,7 @@ class Tracker.Sparql.Backend : Connection {
                        try {
                                direct = new Tracker.Direct.Connection ();
                        } catch (Error e) {
-                               debug ("Unable to initialize direct backend: " + e.message);
+                               warning ("Falling back to bus backend, the direct backend failed to 
initialize: " + e.message);
                        }
 
                        bus = new Tracker.Bus.Connection ();