Use _unref instead of _free _destroy when possible.unref

Replace g_(ptr_)array_free (foo, TRUE) and g_hash_table_destroy
with respectively g_(ptr_)array_unref (foo) and g_hash_table_unref.

I used this command to generate this patch:
for f in `find -name "*.c"`; do sed -i $f -re 's/g_ptr_array_free \(([^ ,]+), TRUE\)/g_ptr_array_unref \(\1\)/'; done

See Danielle's blog for explanation of possible bug _free can do:
http://blogs.gnome.org/danni/2011/11/16/mistakes-with-g_value_set_boxed/

1 files changed, 4 insertions, 4 deletions

diff --git a/src/disco.c b/src/disco.c
index 21a15423b..cc3c3b6f8 100644
--- a/src/disco.c
+++ b/src/disco.c
@@ -237,7 +237,7 @@ gabble_disco_dispose (GObject *object)
       g_free ((char *) item->name);
       g_free ((char *) item->category);
       g_free ((char *) item->type);
-      g_hash_table_destroy (item->features);
+      g_hash_table_unref (item->features);
       g_free (item);
     }
 
@@ -662,7 +662,7 @@ item_info_cb (GabbleDisco *disco,
   item.features = keys;
 
   pipeline->callback (pipeline, &item, pipeline->user_data);
-  g_hash_table_destroy (keys);
+  g_hash_table_unref (keys);
 
 done:
   gabble_disco_fill_pipeline (disco, pipeline);
@@ -847,8 +847,8 @@ gabble_disco_pipeline_destroy (gpointer self)
       gabble_disco_cancel_request (pipeline->disco, request);
     }
 
-  g_hash_table_destroy (pipeline->remaining_items);
-  g_ptr_array_free (pipeline->disco_pipeline, TRUE);
+  g_hash_table_unref (pipeline->remaining_items);
+  g_ptr_array_unref (pipeline->disco_pipeline);
   g_free (pipeline);
 }