[gegl] tests: update serialize test for changes in exposure

[Øyvind Kolås <ok src gnome org>]

commit c62fb091de9e6dd4745a4b9013d36df7d74f924d
Author: Øyvind Kolås <pippin gimp org>
Date:   Fri Feb 10 21:21:47 2017 +0100

    tests: update serialize test for changes in exposure

 tests/simple/test-serialize.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/simple/test-serialize.c b/tests/simple/test-serialize.c
index 285bd02..20cf50d 100644
--- a/tests/simple/test-serialize.c
+++ b/tests/simple/test-serialize.c
@@ -73,7 +73,7 @@ TestCase tests[] = {
 
     {"exposure foo=2",
      "gegl:exposure",
-     "gegl:exposure has no foo property, properties: 'black', 'exposure', 'offset', 'gamma', "},
+     "gegl:exposure has no foo property, properties: 'black-level', 'exposure', 'gamma', "},
 
     {"over aux=[text string='foo bar']",
      "svg:src-over aux=[ gegl:text string='foo bar' width=33 height=7 ]",