Use push_back & reverse iterator for efficiency

src/main.cpp

@@ -65,11 +65,11 @@ int main(int argc, char* argv[]) {
         for (std::sregex_iterator i = beg; i != end; ++i) {
             std::smatch match {*i};
             std::string line = std::string(match[1]) + " [" + std::string(match[2]) + "]\n";
-            lines.insert(lines.begin(), line);
+            lines.push_back(line);
             if (!all) break;
         }
-        for (const std::string& line : lines) {
+        for (auto it = lines.rbegin(); it != lines.rend(); ++it) {
-            std::cout << line;
+            std::cout << *it;
         }
     } catch (const std::exception& ex) {
         std::cerr << "gitlabvers: " << ex.what() << '\n';