patch 8.1.2186: error for bad regexp even though regexp is not used Commit: https://github.com/vim/vim/commit/7eed964b4196b0bfc6cf09dc449f0b9650b2d31e Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 19 20:57:28 2019 +0200 patch 8.1.2186: error for bad regexp even though regexp is not used Problem: Error for bad regexp even though regexp is not used, when writing a file. (Arseny Nasokin) Solution: Ignore regexp errors. (closes #5059)