message: Add --wait-for-input.
  Previous on Windows when running index tests cquery would wait for the user to
  press enter. This breaks AppVeyor CI.
diff: @@ -1036,10 +1036,6 @@ int main(int argc, char** argv) {
  if (HasOption(options, "--test-index")) {
  print_help = false;
  RunIndexTests(options["--test-index"]);
  -#if defined(_WIN32)
  - std::cerr << std::endl << "[Enter] to exit" << std::endl;
  - std::cin.get();
  -#endif
  }
  if (HasOption(options, "--language-server")) {
  @@ -1050,6 +1046,11 @@ int main(int argc, char** argv) {
  return 0;
  }
  + if (HasOption(options, "--wait-for-input")) {
  + std::cerr << std::endl << "[Enter] to exit" << std::endl;
  + std::cin.get();
  + }
  +
  if (print_help) {
  std::cout
  << R"help(cquery is a low-latency C/C++/Objective-C language server.
  @@ -1075,6 +1076,9 @@ Command line options:
  --clang-sanity-check
  Run a simple index test. Verifies basic clang functionality.
  Needs to be executed from the cquery root checkout directory.
  + --wait-for-input
  + If true, cquery will wait for an '[Enter]' before exiting.
  + Useful on windows.
  --help Print this help information.
  Configuration:
  