[tracker] libtracker-extract: Plug leak

[Carlos Garnacho <carlosg src gnome org>]

commit 4a16848c6f44ec5d4f4ba93ebd5ab1d210e4dbb3
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Nov 27 19:50:11 2016 +0100

    libtracker-extract: Plug leak
    
    The TrackerResource was being leaked.

 src/libtracker-extract/tracker-xmp.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-extract/tracker-xmp.c b/src/libtracker-extract/tracker-xmp.c
index 76110ff..1c6915b 100644
--- a/src/libtracker-extract/tracker-xmp.c
+++ b/src/libtracker-extract/tracker-xmp.c
@@ -1142,6 +1142,7 @@ tracker_xmp_apply_regions_to_resource (TrackerResource *resource,
                }
 
                tracker_resource_add_relation (resource, "nfo:hasRegionOfInterest", region_resource);
+               g_object_unref (region_resource);
        }
 
        return TRUE;