patch 8.2.2974: Greek spell checking uses wrong case folding Commit: https://github.com/vim/vim/commit/4f135275984722c1b1e9ace72eeeb7ce7e4ec983 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jun 11 19:07:40 2021 +0200 patch 8.2.2974: Greek spell checking uses wrong case folding Problem: Greek spell checking uses wrong case folding. Solution: Fold capital sigma depending on whether it is at the end of a word or not. (closes #299)