!281 补全注册用户方法上遗漏的@Override注解

Merge pull request !281 from 稚屿/N/A

@@ -252,6 +252,7 @@ public class SysUserServiceImpl implements ISysUserService
      * @param user 用户信息
      * @return 结果
      */
+    @Override
     public boolean registerUser(SysUser user)
     {
         return userMapper.insertUser(user) > 0;