This is patch [#8531] Change gamma node max value

Submitted By:
Stephane SOPPERA (soppera)

It just increases the max value for gamma correction to 10f.  Which
as noted in the patch is the same as the Gimp's color level tool.

Kent

source/blender/nodes/intern/CMP_nodes/CMP_gamma.c

@@ -34,7 +34,7 @@
   
 static bNodeSocketType cmp_node_gamma_in[]= {
 	{	SOCK_RGBA, 1, "Image",			0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
-	{	SOCK_VALUE, 1, "Gamma",			1.0f, 0.0f, 0.0f, 0.0f, 0.001f, 2.0f},
+	{	SOCK_VALUE, 1, "Gamma",			1.0f, 0.0f, 0.0f, 0.0f, 0.001f, 10.0f},
     {	-1, 0, ""	}
 };
 static bNodeSocketType cmp_node_gamma_out[]= {