patch 9.0.1307: setting 'formatoptions' with :let doesn't check for errors Commit: https://github.com/vim/vim/commit/32ff96ef018eb1a5bea0953648b4892a6ee71658 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Mon Feb 13 16:10:04 2023 +0000 patch 9.0.1307: setting 'formatoptions' with :let doesn't check for errors Problem: Setting 'formatoptions' with :let doesn't check for errors. Solution: Pass "errbuf" to set_string_option(). (Yegappan Lakshmanan, closes #11974, closes #11972)