message: Update web-crawler.cpp
diff: @@ -18,8 +18,7 @@ public:
  const auto& from_url = result[i];
  const auto& name = hostname(from_url);
  for (const auto& to_url: htmlParser.getUrls(from_url)) {
  - if (!lookup.count(to_url) &&
  - name == hostname(to_url)) {
  + if (!lookup.count(to_url) && name == hostname(to_url)) {
  result.emplace_back(to_url);
  lookup.emplace(to_url);
  }
  