Update README.

README.md

@@ -303,24 +303,24 @@ int main()
     {
         pqxx::connection C;
         std::cout << "Connected to " << C.dbname() << std::endl;
-        pqxx::work W(C);
+        pqxx::work W{C};
 
-        pqxx::result R = W.exec("SELECT name FROM employee");
+        pqxx::result R{W.exec("SELECT name FROM employee")};
 
-        std::cout << "Found " << R.size() << "employees:" << std::endl;
+        std::cout << "Found " << R.size() << "employees:\n";
         for (auto row: R)
-            std::cout << row[0].c_str() << std::endl;
+            std::cout << row[0].c_str() << '\n';
 
-        std::cout << "Doubling all employees' salaries..." << std::endl;
-        W.exec("UPDATE employee SET salary = salary*2");
+        std::cout << "Doubling all employees' salaries...\n";
+        W.exec0("UPDATE employee SET salary = salary*2");
 
         std::cout << "Making changes definite: ";
         W.commit();
-        std::cout << "OK." << std::endl;
+        std::cout << "OK.\n";
     }
-    catch (const std::exception &e)
+    catch (std::exception const &e)
     {
-        std::cerr << e.what() << std::endl;
+        std::cerr << e.what() << '\n';
         return 1;
     }
     return 0;