[gimp] app: fix unit test.

[Jehan <jehanp src gnome org>]

commit 5335f313d97f65a3f8f8f21159e6bd7c699f67d2
Author: Jehan <jehan girinstud io>
Date:   Wed Jun 12 20:56:49 2019 +0200

    app: fix unit test.
    
    gimp_image_parasite_attach() now has a push_undo parameter.
    See commit 710cfc1f478a2d9b75b622ee1445972feeb19c9a.

 app/tests/test-xcf.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/app/tests/test-xcf.c b/app/tests/test-xcf.c
index 843c641430..9a10ac1cac 100644
--- a/app/tests/test-xcf.c
+++ b/app/tests/test-xcf.c
@@ -464,14 +464,13 @@ gimp_create_mainimage (Gimp     *gimp,
                                 GIMP_PARASITE_PERSISTENT,
                                 GIMP_MAINIMAGE_PARASITE_SIZE,
                                 GIMP_MAINIMAGE_PARASITE_DATA);
-  gimp_image_parasite_attach (image,
-                              parasite);
+  gimp_image_parasite_attach (image, parasite, FALSE);
   gimp_parasite_free (parasite);
   parasite = gimp_parasite_new ("gimp-comment",
                                 GIMP_PARASITE_PERSISTENT,
                                 strlen (GIMP_MAINIMAGE_COMMENT) + 1,
                                 GIMP_MAINIMAGE_COMMENT);
-  gimp_image_parasite_attach (image, parasite);
+  gimp_image_parasite_attach (image, parasite, FALSE);
   gimp_parasite_free (parasite);