[gnome-builder] threading: use array style field padding

[Christian Hergert <chergert src gnome org>]

commit 7ba71f108d4e7f2f1ea244a3f02d8af7f8bf1794
Author: Christian Hergert <chergert redhat com>
Date:   Tue Jan 15 07:51:48 2019 -0800

    threading: use array style field padding

 src/libide/threading/ide-subprocess-supervisor.h | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)
---
diff --git a/src/libide/threading/ide-subprocess-supervisor.h 
b/src/libide/threading/ide-subprocess-supervisor.h
index 7d69349c0..219c7de33 100644
--- a/src/libide/threading/ide-subprocess-supervisor.h
+++ b/src/libide/threading/ide-subprocess-supervisor.h
@@ -44,14 +44,7 @@ struct _IdeSubprocessSupervisorClass
                    IdeSubprocess           *subprocess);
 
   /*< private >*/
-  gpointer _reserved1;
-  gpointer _reserved2;
-  gpointer _reserved3;
-  gpointer _reserved4;
-  gpointer _reserved5;
-  gpointer _reserved6;
-  gpointer _reserved7;
-  gpointer _reserved8;
+  gpointer _reserved[8];
 };
 
 IDE_AVAILABLE_IN_3_32