message: Fix calling convention on vulkan layer function. Closes
diff: @@ -408,8 +408,8 @@ VK_LAYER_RENDERDOC_CaptureGetInstanceProcAddr(VkInstance instance, const char *p
  }
  // layer interface negotation (new interface)
  -VK_LAYER_EXPORT VKAPI_ATTR VkResult VK_LAYER_RENDERDOC_CaptureNegotiateLoaderLayerInterfaceVersion(
  - VkNegotiateLayerInterface *pVersionStruct)
  +VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL
  +VK_LAYER_RENDERDOC_CaptureNegotiateLoaderLayerInterfaceVersion(VkNegotiateLayerInterface *pVersionStruct)
  {
  if(pVersionStruct->sType != LAYER_NEGOTIATE_INTERFACE_STRUCT)
  return VK_ERROR_INITIALIZATION_FAILED;
  