patch 8.2.1414: popupwindow missing last couple of lines Commit: https://github.com/vim/vim/commit/bf61fdd00808bfa7cc61a82c719fc220bba50ba3 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 10 20:39:17 2020 +0200 patch 8.2.1414: popupwindow missing last couple of lines Problem: Popupwindow missing last couple of lines when cursor is in the first line. Solution: Compute the max height also when top aligned. (closes #6664)

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|f+8&&|o@1| |4| @64
|f+0&&|o@1| |5| @64
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|f|o@1| |9| @64
|f|o@1| |1|0| @63
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