[gnome-builder] meson: raise meson priority by lowering integer value

[Christian Hergert <chergert src gnome org>]

commit f9702e3163b05ac958fc045da44a69ccc42eb70e
Author: Christian Hergert <chergert redhat com>
Date:   Sun Jan 13 16:44:49 2019 -0800

    meson: raise meson priority by lowering integer value

 src/plugins/meson/gbp-meson-build-system-discovery.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/meson/gbp-meson-build-system-discovery.h 
b/src/plugins/meson/gbp-meson-build-system-discovery.h
index 3596b11bd..27224a42e 100644
--- a/src/plugins/meson/gbp-meson-build-system-discovery.h
+++ b/src/plugins/meson/gbp-meson-build-system-discovery.h
@@ -25,7 +25,7 @@
 G_BEGIN_DECLS
 
 #define GBP_TYPE_MESON_BUILD_SYSTEM_DISCOVERY     (gbp_meson_build_system_discovery_get_type())
-#define GBP_MESON_BUILD_SYSTEM_DISCOVERY_PRIORITY (100)
+#define GBP_MESON_BUILD_SYSTEM_DISCOVERY_PRIORITY (-400)
 
 G_DECLARE_FINAL_TYPE (GbpMesonBuildSystemDiscovery, gbp_meson_build_system_discovery, GBP, 
MESON_BUILD_SYSTEM_DISCOVERY, GObject)