[nautilus] batch-rename-utilities: print warnings if query goes wrong

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit 4fcca2e3e20d508c3b1302914ec1f098e3e7ee30
Author: Carlos Soriano <csoriano gnome org>
Date:   Wed Aug 31 14:33:13 2016 +0200

    batch-rename-utilities: print warnings if query goes wrong
    
    https://bugzilla.gnome.org/show_bug.cgi?id=770586

 src/nautilus-batch-rename-utilities.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/nautilus-batch-rename-utilities.c b/src/nautilus-batch-rename-utilities.c
index ca93e9b..7b4196c 100644
--- a/src/nautilus-batch-rename-utilities.c
+++ b/src/nautilus-batch-rename-utilities.c
@@ -745,6 +745,8 @@ on_cursor_callback (GObject      *object,
     success = tracker_sparql_cursor_next_finish (cursor, result, &error);
     if (!success)
     {
+        g_warning ("Error on batch rename tracker query cursor: %s", error->message);
+
         g_clear_error (&error);
         g_clear_object (&cursor);
 
@@ -1129,6 +1131,7 @@ check_metadata_for_selection (NautilusBatchRenameDialog *dialog,
     connection = tracker_sparql_connection_get (NULL, &error);
     if (!connection)
     {
+        g_warning ("Error on batch rename tracker connection: %s", error->message);
         g_error_free (error);
 
         return;