Simplify code of retrieving current year in add form; fix typo

Signed-off-by: Pekka Helenius <fincer89@hotmail.com>

bookstore/src/main/java/com/fjordtek/bookstore/web/BookController.java

@@ -96,13 +96,10 @@ public class BookController {
 			) {
 
 		Book newBook = new Book();
-		dataModel.addAttribute("book", new Book());
+		newBook.setYear(Year.now().getValue());
+		dataModel.addAttribute("book", newBook);
 		dataModel.addAttribute("categories", categoryRepository.findAll());
 
-		if (newBook.getYear() == 0) {
-			newBook.setYear(Year.now().getValue());
-		}
-
 		httpServerLogger.logMessageNormal(
 				requestData,
 				bookAddPageView + ": " + "HTTPOK"