[ ZTstory #1312 ] 更改电网40模式安装时，不修改issue文件的情况

电网40模式安装时，会将issue文件更改为4.2.40，在按照最新的产品命名规范修改产品名称后，电网40模式安装匹配失败，不会修改issue文件。
通过更改安装脚本，修复该问题。

要提交的变更：
        修改：     operation/finish_install/exec_install_40.sh
Signed-off-by: zhang <dpzhang@linx-info.com>

operation/finish_install/exec_install_40.sh

@@ -13,6 +13,6 @@ if [ $os == "40" ];then
     echo "chown sys:sys /etc/skel/.kde/share/config/kdesktoprc" >> /mnt/opt/StateGrid/install_shell/create_users.sh
     echo "chown \$USER_NAME:\$USER_NAME \$USER_NAME/.kde/share/config" >> /mnt/opt/StateGrid/install_shell/create_users.sh
     # change issue
-    sed 's/6\.0\.42\.41/4\.2\.40/g' /mnt/etc/issue > /mnt/etc/issue.bak
+    sed 's/6\.0\.42/4\.2\.40/g' /mnt/etc/issue > /mnt/etc/issue.bak
     mv /mnt/etc/issue.bak /mnt/etc/issue
 fi