On closing the menu vertical lines may stay visible in the console

[nightroman]

This is a known defect of the console (before Windows 10) with clear type fonts. On closing the menu some vertical ghost lines may stay visible, namely, at the left or right menu border or both.

The remedy is to store/restore not just the buffer area of the menu but the buffer rectangle from the left most to the right most. I will submit the PR shortly.