[gegl] tests: update mipmap tests after gegl_buffer_set behavior change

[Øyvind Kolås <ok src gnome org>]

commit fa07b7955ca7c3fb321394c7cf1cb7eb3ca9ec54
Author: Øyvind Kolås <pippin gimp org>
Date:   Fri Feb 24 16:02:40 2017 +0100

    tests: update mipmap tests after gegl_buffer_set behavior change

 tests/buffer/reference/mipmap_iterator.buf |   14 +++++++-------
 tests/buffer/reference/mipmap_set2.buf     |   22 +++++++++++-----------
 2 files changed, 18 insertions(+), 18 deletions(-)
---
diff --git a/tests/buffer/reference/mipmap_iterator.buf b/tests/buffer/reference/mipmap_iterator.buf
index 34e65d9..319c94c 100644
--- a/tests/buffer/reference/mipmap_iterator.buf
+++ b/tests/buffer/reference/mipmap_iterator.buf
@@ -24,13 +24,13 @@ Test: mipmap_iterator
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diff --git a/tests/buffer/reference/mipmap_set2.buf b/tests/buffer/reference/mipmap_set2.buf
index 10b805f..6e700a2 100644
--- a/tests/buffer/reference/mipmap_set2.buf
+++ b/tests/buffer/reference/mipmap_set2.buf
@@ -23,14 +23,14 @@ Test: mipmap_set2
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@@ -45,9 +45,9 @@ Test: mipmap_set2
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