Update ref image

Author: lgritz

testsuite/python-colorconfig/ref/out-ocio21-python27-alt.txt

@@ -17,11 +17,13 @@ aliases of 'scene_linear' are []
 resolve('foo'): foo
 resolve('linear'): linear
 resolve('scene_linear'): linear
-resolve('lin_srgb'): lin_srgb
+resolve('lin_srgb'): linear
 resolve('srgb'): sRGB
+resolve('ACEScg'): ACEScg
 equivalent('lin_srgb', 'srgb'): False
 equivalent('scene_linear', 'srgb'): False
-equivalent('scene_linear', 'lin_srgb'): False
+equivalent('linear', 'lin_srgb'): True
+equivalent('scene_linear', 'lin_srgb'): True
 equivalent('ACEScg', 'scene_linear'): False
 equivalent('lnf', 'scene_linear'): False