message: Only read printf data if shaders used printf
diff: @@ -1730,7 +1730,7 @@ void VulkanReplay::FetchShaderFeedback(uint32_t eventId)
  uint32_t *printfBuf = (uint32_t *)data.data();
  uint32_t *printfBufEnd = (uint32_t *)(data.data() + Vulkan_Debug_PrintfBufferSize());
  - if(*printfBuf > 0)
  + if(usesPrintf && *printfBuf > 0)
  {
  uint32_t wordsNeeded = *printfBuf;
  