message: [vcpkg] allow --version to check the version
diff: @@ -233,6 +233,12 @@ namespace vcpkg
  VcpkgCmdArguments args;
  std::vector<std::string> feature_flags;
  + if (arg_first != arg_last && arg_first + 1 == arg_last && *arg_first == "--version")
  + {
  + args.command = "version";
  + return args;
  + }
  +
  for (auto it = arg_first; it != arg_last; ++it)
  {
  std::string basic_arg = *it;
  