patch 9.0.1524: passing -1 for bool is not always rejected Commit: https://github.com/vim/vim/commit/8cf51376b842e0060edf08bd2e5bd9933c552ecf Author: zeertzjq <zeertzjq@outlook.com> Date: Mon May 8 15:31:38 2023 +0100 patch 9.0.1524: passing -1 for bool is not always rejected Problem: Passing -1 for bool is not always rejected. Solution: Check for error in a better way. (closes https://github.com/vim/vim/issues/12358)