message: Fix passing rdcstr through variadic args
diff: @@ -664,7 +664,7 @@ void WrappedVulkan::ApplyRPLoadDiscards(VkCommandBuffer commandBuffer, VkRect2D
  StringFormat::Fmt("Render pass %s has resolve feedback loop detected with at "
  "least one attachment read before it is resolved to.\n"
  "No discard patterns will be shown to avoid cross-pollution.",
  - rpName));
  + rpName.c_str()));
  }
  return;
  