patch 8.2.4978: no error if engine selection atom is not at the start Commit: https://github.com/vim/vim/commit/360da40b47a84ee8586c3b5d062f8c64a2ac9cc6 Author: Christian Brabandt <cb@256bit.org> Date: Wed May 18 15:04:02 2022 +0100 patch 8.2.4978: no error if engine selection atom is not at the start Problem: No error if engine selection atom is not at the start. Solution: Give an error. (Christian Brabandt, closes https://github.com/vim/vim/issues/10439)