[tracker] libtracker-miner: Fix typo introduced by my previous commit

[Carlos Garnacho <carlosg src gnome org>]

commit e765a5efb8ad60af299704b340210d7757de687f
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Feb 24 16:53:27 2014 +0100

    libtracker-miner: Fix typo introduced by my previous commit

 src/libtracker-miner/tracker-miner-fs.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-miner/tracker-miner-fs.c b/src/libtracker-miner/tracker-miner-fs.c
index abf0873..700de1d 100644
--- a/src/libtracker-miner/tracker-miner-fs.c
+++ b/src/libtracker-miner/tracker-miner-fs.c
@@ -1557,7 +1557,7 @@ item_update_children_uri_cb (GObject      *object,
                                                "} ",
                                                child_urn, child_urn, child_uri);
 
-                       if (fs->priv->thunbnailer)
+                       if (fs->priv->thumbnailer)
                                tracker_thumbnailer_move_add (fs->priv->thumbnailer,
                                                              child_source_uri, child_mime, child_uri);