[gimp] app: fix layer mode in test-xcf.c

[Michael Natterer <mitch src gnome org>]

commit 60dcb1787445f8ad31546dcdc08df9f0cbec122c
Author: Michael Natterer <mitch gimp org>
Date:   Mon Jan 9 22:18:05 2017 +0100

    app: fix layer mode in test-xcf.c

 app/tests/test-xcf.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/tests/test-xcf.c b/app/tests/test-xcf.c
index ba2e514..c48213d 100644
--- a/app/tests/test-xcf.c
+++ b/app/tests/test-xcf.c
@@ -68,7 +68,7 @@
 #define GIMP_MAINIMAGE_LAYER1_HEIGHT    51
 #define GIMP_MAINIMAGE_LAYER1_FORMAT    babl_format ("R'G'B'A u8")
 #define GIMP_MAINIMAGE_LAYER1_OPACITY   GIMP_OPACITY_OPAQUE
-#define GIMP_MAINIMAGE_LAYER1_MODE      GIMP_LAYER_MODE_NORMAL
+#define GIMP_MAINIMAGE_LAYER1_MODE      GIMP_LAYER_MODE_NORMAL_NON_LINEAR
 
 #define GIMP_MAINIMAGE_LAYER2_NAME      "layer2"
 #define GIMP_MAINIMAGE_LAYER2_WIDTH     25