patch 8.1.0961: Mac: fsync may fail sometimes commit https://github.com/vim/vim/commit/9166838420c2e2029270c4683f68aecd3db5a484 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 21 12:16:12 2019 +0100 patch 8.1.0961: Mac: fsync may fail sometimes Problem: Mac: fsync may fail sometimes. Solution: Do not check errno. (Yee Cheng Chin, closes https://github.com/vim/vim/issues/4025)