message: fix typo connot ==> cannot
diff: @@ -61,22 +61,22 @@ public class CheckConfigRunner implements ApplicationRunner {
  @Override
  public void run(ApplicationArguments args) {
  if (StringUtils.isEmpty(mailHost)) {
  - log.error("************** Configuration error: mail host connot be EMPTY! **************");
  + log.error("************** Configuration error: mail host cannot be EMPTY! **************");
  SpringApplication.exit(applicationContext);
  }
  if (StringUtils.isEmpty(mailPort)) {
  - log.error("************** Configuration error: mail port connot be EMPTY! **************");
  + log.error("************** Configuration error: mail port cannot be EMPTY! **************");
  SpringApplication.exit(applicationContext);
  }
  if (StringUtils.isEmpty(mailUserName)) {
  - log.error("************** Configuration error: mail username connot be EMPTY! **************");
  + log.error("************** Configuration error: mail username cannot be EMPTY! **************");
  SpringApplication.exit(applicationContext);
  }
  if (StringUtils.isEmpty(mailUserName)) {
  - log.error("************** Configuration error: mail nickname connot be EMPTY! **************");
  + log.error("************** Configuration error: mail nickname cannot be EMPTY! **************");
  SpringApplication.exit(applicationContext);
  }
  