[tracker] libtracker-data: fix format-security issue

[Jeremy Bicha <jbicha src gnome org>]

commit 1f39141f3e0cac24fde66e3a4462d0aff3ad7c31
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Fri Jul 21 17:03:08 2017 -0400

    libtracker-data: fix format-security issue
    
    https://bugzilla.gnome.org/show_bug.cgi?id=785245

 src/libtracker-data/tracker-db-interface-sqlite.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-data/tracker-db-interface-sqlite.c 
b/src/libtracker-data/tracker-db-interface-sqlite.c
index a001e2f..b4ab1d9 100644
--- a/src/libtracker-data/tracker-db-interface-sqlite.c
+++ b/src/libtracker-data/tracker-db-interface-sqlite.c
@@ -1897,7 +1897,7 @@ tracker_db_interface_sqlite_wal_checkpoint (TrackerDBInterface  *interface,
                g_set_error (error,
                             TRACKER_DB_INTERFACE_ERROR,
                             TRACKER_DB_QUERY_ERROR,
-                            sqlite3_errstr (return_val));
+                            "%s", sqlite3_errstr (return_val));
                return FALSE;
        }