message: Fix typo in TransformNormalNodeGlsl
  This changelist fixes a typo in TransformNormalNodeGlsl::emitFunctionCall, setting includeType to false so that the output variable is only declared once.
diff: @@ -20,7 +20,7 @@ void TransformNormalNodeGlsl::emitFunctionCall(const ShaderNode& node, GenContex
  const ShaderGenerator& shadergen = context.getShaderGenerator();
  const ShaderOutput* output = node.getOutput();
  shadergen.emitLineBegin(stage);
  - shadergen.emitOutput(output, true, false, context, stage);
  + shadergen.emitOutput(output, false, false, context, stage);
  shadergen.emitString(" = normalize(" + output->getVariable() + ")", stage);
  shadergen.emitLineEnd(stage);
  END_SHADER_STAGE(stage, Stage::PIXEL)
  