add: error handling to scanner example

24-structs/05-project-log-parser-structs/main.go

@@ -86,4 +86,9 @@ func main() {
 
 	// Print the total visits for all domains
 	fmt.Printf("\n%-30s %10d\n", "TOTAL", p.total)
+
+	// Let's handle the error
+	if err := in.Err(); err != nil {
+		fmt.Println("> Err:", err)
+	}
 }