[gtk/wip/chergert/glproto] fix typo in program indexes

[Christian Hergert <chergert src gnome org>]

commit a31d7172fe5edd0c5e9b753b72d23b396e664348
Author: Christian Hergert <chergert redhat com>
Date:   Sat Jan 2 00:21:45 2021 -0800

    fix typo in program indexes

 gsk/next/gskglprograms.defs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gsk/next/gskglprograms.defs b/gsk/next/gskglprograms.defs
index 1e075bea81..12a00acde4 100644
--- a/gsk/next/gskglprograms.defs
+++ b/gsk/next/gskglprograms.defs
@@ -80,6 +80,6 @@ GSK_GL_DEFINE_PROGRAM (repeat,
 GSK_GL_DEFINE_PROGRAM (unblurred_outset_shadow,
                        "/org/gtk/libgsk/glsl/unblurred_outset_shadow.glsl",
                        GSK_GL_ADD_UNIFORM (1, UNBLURRED_OUTSET_SHADOW_COLOR, u_color)
-                       GSK_GL_ADD_UNIFORM (1, UNBLURRED_OUTSET_SHADOW_SPREAD, u_spread)
-                       GSK_GL_ADD_UNIFORM (1, UNBLURRED_OUTSET_SHADOW_OFFSET, u_offset)
-                       GSK_GL_ADD_UNIFORM (2, UNBLURRED_OUTSET_SHADOW_OUTLINE_RECT, u_outline_rect))
+                       GSK_GL_ADD_UNIFORM (2, UNBLURRED_OUTSET_SHADOW_SPREAD, u_spread)
+                       GSK_GL_ADD_UNIFORM (3, UNBLURRED_OUTSET_SHADOW_OFFSET, u_offset)
+                       GSK_GL_ADD_UNIFORM (4, UNBLURRED_OUTSET_SHADOW_OUTLINE_RECT, u_outline_rect))