message: Convert name of file to u8 string, to compile on windows
diff: @@ -517,7 +517,7 @@ namespace vcpkg::Build
  {
  Checks::exit_with_message(
  VCPKG_LINE_INFO,
  - additional_file + " was listed as an additional file for calculating the abi, but was not found.");
  + additional_file.u8string() + " was listed as an additional file for calculating the abi, but was not found.");
  }
  }
  