patch 8.0.1287: temp file used for viminfo may have wrong permissions commit https://github.com/vim/vim/commit/aeeb6888ca3ee5122793b37c5aacc6c960b02c37 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 11 16:45:19 2017 +0100 patch 8.0.1287: temp file used for viminfo may have wrong permissions Problem: The temp file used when updating the viminfo file may have the wrong permissions if setting the group fails. Solution: Check if the group matches and reduce permissions if not.