message: List packages for vcpkg install
diff: @@ -56,15 +56,18 @@ namespace vcpkg::Commands::Update
  }
  else
  {
  + std::string install_line;
  System::println("The following packages differ from their port versions:");
  for (auto&& package : outdated_packages)
  {
  + install_line += package.spec.to_string();
  + install_line += " ";
  System::println(" %-32s %s", package.spec, package.version_diff.to_string());
  }
  System::println("\n"
  "To update these packages, run\n"
  " .\\vcpkg remove --outdated\n"
  - " .\\vcpkg install <pkgs>...");
  + " .\\vcpkg install " + install_line);
  }
  auto version_file = paths.get_filesystem().read_contents(paths.root / "toolsrc" / "VERSION.txt");
  