patch 8.1.0803: session file has problem with single quote in file name commit https://github.com/vim/vim/commit/ad36a3588d32985ee27bd11aa97e5195ef623158 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 24 13:34:42 2019 +0100 patch 8.1.0803: session file has problem with single quote in file name Problem: Session file has problem with single quote in file name. (Jon Crowe) Solution: Use a double quoted string. Add a test.