[gnome-builder/gnome-builder-3-28] pipeline: use unref, not free

[Christian Hergert <chergert src gnome org>]

commit c12b7a129f84f57f9dc177a8b31cdfb5946c68fc
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jun 18 16:30:25 2018 -0700

    pipeline: use unref, not free
    
    This has an unpredictable outcome in terms of leaking
    since we can't provide the extra parameter.

 src/libide/buildsystem/ide-build-pipeline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/libide/buildsystem/ide-build-pipeline.c b/src/libide/buildsystem/ide-build-pipeline.c
index 82364ac7a..f7f0d1f85 100644
--- a/src/libide/buildsystem/ide-build-pipeline.c
+++ b/src/libide/buildsystem/ide-build-pipeline.c
@@ -1247,7 +1247,7 @@ ide_build_pipeline_finalize (GObject *object)
   g_clear_pointer (&self->errfmts, g_array_unref);
   g_clear_pointer (&self->errfmt_top_dir, g_free);
   g_clear_pointer (&self->errfmt_current_dir, g_free);
-  g_clear_pointer (&self->chained_bindings, g_ptr_array_free);
+  g_clear_pointer (&self->chained_bindings, g_ptr_array_unref);
 
   G_OBJECT_CLASS (ide_build_pipeline_parent_class)->finalize (object);