patch 9.0.1444: crash when passing NULL to setcmdline() Commit: https://github.com/vim/vim/commit/ac6cd31afcbdd08bfa92ca33f7d4ce5773ba4353 Author: zeertzjq <zeertzjq@outlook.com> Date: Wed Apr 12 16:21:14 2023 +0100 patch 9.0.1444: crash when passing NULL to setcmdline() Problem: Crash when passing NULL to setcmdline(). (Andreas Louv) Solution: Use tv_get_string() instead of using v_string directly. (closes #12231, closes #12227)