Clean and Typo

hrt/prefab/ShaderGraph.hx

@@ -36,7 +36,6 @@ class ShaderGraph extends DynamicShader {
 		btn.on("click", function() {
  			ctx.ide.openFile(source);
 		});
-
 		ctx.properties.add(btn,this.props, function(pname) {
 			ctx.onChange(this, pname);
 		});

hrt/shgraph/nodes/SubGraph.hx

@@ -27,7 +27,7 @@ class SubGraph extends ShaderNode {
 			try {
 				subShaderGraph = new ShaderGraph(pathShaderGraph);
 			} catch (e : Dynamic) {
-				trace("The shader doesn't not exist.");
+				trace("The shader does not exist.");
 				return;
 			}
 			inputsInfo = new Map<String, ShaderNode.InputInfo>();