patch 9.0.0450: return value of argument check functions is inconsistent Commit: https://github.com/vim/vim/commit/cd2d5c181a0b91585a591bc9d2c0438937f19814 Author: zeertzjq <zeertzjq@outlook.com> Date: Mon Sep 12 14:09:30 2022 +0100 patch 9.0.0450: return value of argument check functions is inconsistent Problem: Return value of argument check functions is inconsistent. Solution: Return OK/FAIL instead of TRUE/FALSE. (closes https://github.com/vim/vim/issues/11112)