message: Fix build command not printing out the missing dependencies on fail
diff: @@ -154,7 +154,7 @@ namespace vcpkg::Commands::Build
  }),
  unmet_dependencies.end());
  - Checks::check_exit(unmet_dependencies.empty());
  + Checks::check_exit(!unmet_dependencies.empty());
  System::println(System::color::error, "The build command requires all dependencies to be already installed.");
  System::println("The following dependencies are missing:");
  System::println("");
  