message: Process: more win32-cmdline args adaptions.
diff: @@ -237,7 +237,13 @@ Process::Process(
  string cmd = _path;
  for (size_t i = 1; i < _args.size(); ++i)
  - cmd += " \"" + _args[i] + "\"";
  + {
  + cmd += ' ';
  + if (_args[i].find(' ') != std::string::npos)
  + cmd += '\"' + _args[i] + '\"';
  + else
  + cmd += _args[i];
  + }
  auto const envScope = InheritingEnvBlock{_env};
  @@ -306,7 +312,7 @@ Process::Process(
  {
  cmd += ' ';
  if (_args[i].find(' ') != std::string::npos)
  - cmd += "\"" + _args[i] + "\"";
  + cmd += '\"' + _args[i] + '\"';
  else
  cmd += _args[i];
  }
  