patch 8.1.1766: code for writing session file is spread out commit https://github.com/vim/vim/commit/845380791196aec7f991987ebf7b22de3779d106 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 28 14:15:42 2019 +0200 patch 8.1.1766: code for writing session file is spread out Problem: Code for writing session file is spread out. Solution: Put it in one file. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/4728)