OSL Shader Files:

* Simplify default color values, where each component was the same.
* Initialize closures as Null Closure, rather than assigning an existing closure, gets overwritten anyways.

intern/cycles/kernel/shaders/node_checker_texture.osl

@@ -44,10 +44,10 @@ shader node_checker_texture(
 	matrix mapping = matrix(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
 	float Scale = 5.0,
 	point Vector = P,
-	color Color1 = color(0.8, 0.8, 0.8),
-	color Color2 = color(0.2, 0.2, 0.2),
+	color Color1 = 0.8,
+	color Color2 = 0.2,
 	output float Fac = 0.0,
-	output color Color = color(0.0, 0.0, 0.0))
+	output color Color = 0.0)
 {
 	point p = Vector;