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_gradient_texture.osl

@@ -68,7 +68,7 @@ shader node_gradient_texture(
 	string Type = "Linear",
 	point Vector = P,
 	output float Fac = 0.0,
-	output color Color = color(0.0, 0.0, 0.0))
+	output color Color = 0.0)
 {
 	point p = Vector;