[Libreoffice] [MHST][EasyHack] #38830 code review request

[Ta Duc Tung]

Hi,

We've submitted a patch for easy hack number #34697 (#38830) about 
printing current page
https://bugs.freedesktop.org/show_bug.cgi?id=38830
https://bugs.freedesktop.org/show_bug.cgi?id=34697
Above easy hacks are marked as duplicate so I've submitted to #34697.
Please help me to review it :)

Thanks and Best Regards,
Ta Tung