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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|5| @31|║+0#0000001#ffd7ff255| |t|w|o| @2|║| +0#0000000#ffffff0@32
|6| @31|║+0#0000001#ffd7ff255| |t|h|r|e@1| |║| +0#0000000#ffffff0@32
|7| @31|╚+0#0000001#ffd7ff255|═@6|╝| +0#0000000#ffffff0@32
|8| @73
|9| @73
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